Home / 61,125.95-84,381.45-38,498.20

Finding the Fourth Proportional to 61,125.95, 84,381.45 and 38,498.20

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Solution

The fourth proportional to 61,125.95, 84,381.45 and 38,498.20 is: 53,144.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,125.95 : 84,381.45 = 38,498.20 : x
  2. Step 2: Convert to fraction form
    61,125.95/84,381.45 = 38,498.20/x
  3. Step 3: Cross multiply
    61,125.95x = 84,381.45 × 38,498.20
  4. Step 4: Simplify right side
    61,125.95x = 3,248,533,516.48
  5. Step 5: Solve for x
    x = 3,248,533,516.48/61,125.95
  6. Step 6: Final answer
    x = 53,144.92

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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.