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Finding the Fourth Proportional to 63,800.10, 95,700.15 and 38,430.90

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Solution

The fourth proportional to 63,800.10, 95,700.15 and 38,430.90 is: 57,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,800.10 : 95,700.15 = 38,430.90 : x
  2. Step 2: Convert to fraction form
    63,800.10/95,700.15 = 38,430.90/x
  3. Step 3: Cross multiply
    63,800.10x = 95,700.15 × 38,430.90
  4. Step 4: Simplify right side
    63,800.10x = 3,677,842,894.64
  5. Step 5: Solve for x
    x = 3,677,842,894.64/63,800.10
  6. Step 6: Final answer
    x = 57,646.35

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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.