Home / 78,842.49-108,754.04-56,188.81

Finding the Fourth Proportional to 78,842.49, 108,754.04 and 56,188.81

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Solution

The fourth proportional to 78,842.49, 108,754.04 and 56,188.81 is: 77,505.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,842.49 : 108,754.04 = 56,188.81 : x
  2. Step 2: Convert to fraction form
    78,842.49/108,754.04 = 56,188.81/x
  3. Step 3: Cross multiply
    78,842.49x = 108,754.04 × 56,188.81
  4. Step 4: Simplify right side
    78,842.49x = 6,110,760,672.58
  5. Step 5: Solve for x
    x = 6,110,760,672.58/78,842.49
  6. Step 6: Final answer
    x = 77,505.93

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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.