Home / 61,108.47-84,203.28-49,123.71

Finding the Fourth Proportional to 61,108.47, 84,203.28 and 49,123.71

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Solution

The fourth proportional to 61,108.47, 84,203.28 and 49,123.71 is: 67,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,108.47 : 84,203.28 = 49,123.71 : x
  2. Step 2: Convert to fraction form
    61,108.47/84,203.28 = 49,123.71/x
  3. Step 3: Cross multiply
    61,108.47x = 84,203.28 × 49,123.71
  4. Step 4: Simplify right side
    61,108.47x = 4,136,377,507.77
  5. Step 5: Solve for x
    x = 4,136,377,507.77/61,108.47
  6. Step 6: Final answer
    x = 67,689.10

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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.