Home / 85,488.49-118,007.04-76,520.17

Finding the Fourth Proportional to 85,488.49, 118,007.04 and 76,520.17

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Solution

The fourth proportional to 85,488.49, 118,007.04 and 76,520.17 is: 105,627.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,488.49 : 118,007.04 = 76,520.17 : x
  2. Step 2: Convert to fraction form
    85,488.49/118,007.04 = 76,520.17/x
  3. Step 3: Cross multiply
    85,488.49x = 118,007.04 × 76,520.17
  4. Step 4: Simplify right side
    85,488.49x = 9,029,918,762.00
  5. Step 5: Solve for x
    x = 9,029,918,762.00/85,488.49
  6. Step 6: Final answer
    x = 105,627.30

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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.