Home / 85,220.90-127,830.15-38,473.70

Finding the Fourth Proportional to 85,220.90, 127,830.15 and 38,473.70

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Solution

The fourth proportional to 85,220.90, 127,830.15 and 38,473.70 is: 57,710.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,220.90 : 127,830.15 = 38,473.70 : x
  2. Step 2: Convert to fraction form
    85,220.90/127,830.15 = 38,473.70/x
  3. Step 3: Cross multiply
    85,220.90x = 127,830.15 × 38,473.70
  4. Step 4: Simplify right side
    85,220.90x = 4,918,098,842.06
  5. Step 5: Solve for x
    x = 4,918,098,842.06/85,220.90
  6. Step 6: Final answer
    x = 57,710.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.