Home / 42,062.68-63,122.08-21,818.10

Finding the Fourth Proportional to 42,062.68, 63,122.08 and 21,818.10

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Solution

The fourth proportional to 42,062.68, 63,122.08 and 21,818.10 is: 32,741.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,062.68 : 63,122.08 = 21,818.10 : x
  2. Step 2: Convert to fraction form
    42,062.68/63,122.08 = 21,818.10/x
  3. Step 3: Cross multiply
    42,062.68x = 63,122.08 × 21,818.10
  4. Step 4: Simplify right side
    42,062.68x = 1,377,203,483.49
  5. Step 5: Solve for x
    x = 1,377,203,483.49/42,062.68
  6. Step 6: Final answer
    x = 32,741.70

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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.