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Finding the Fourth Proportional to 42,602.80, 63,904.20 and 38,010.10

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Solution

The fourth proportional to 42,602.80, 63,904.20 and 38,010.10 is: 57,015.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,602.80 : 63,904.20 = 38,010.10 : x
  2. Step 2: Convert to fraction form
    42,602.80/63,904.20 = 38,010.10/x
  3. Step 3: Cross multiply
    42,602.80x = 63,904.20 × 38,010.10
  4. Step 4: Simplify right side
    42,602.80x = 2,429,005,032.42
  5. Step 5: Solve for x
    x = 2,429,005,032.42/42,602.80
  6. Step 6: Final answer
    x = 57,015.15

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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.