Home / 85,523.49-118,055.34-76,555.17

Finding the Fourth Proportional to 85,523.49, 118,055.34 and 76,555.17

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Solution

The fourth proportional to 85,523.49, 118,055.34 and 76,555.17 is: 105,675.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,523.49 : 118,055.34 = 76,555.17 : x
  2. Step 2: Convert to fraction form
    85,523.49/118,055.34 = 76,555.17/x
  3. Step 3: Cross multiply
    85,523.49x = 118,055.34 × 76,555.17
  4. Step 4: Simplify right side
    85,523.49x = 9,037,746,623.11
  5. Step 5: Solve for x
    x = 9,037,746,623.11/85,523.49
  6. Step 6: Final answer
    x = 105,675.61

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.