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Finding the Fourth Proportional to 61,387.80, 84,713.76 and 37,514.40

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Solution

The fourth proportional to 61,387.80, 84,713.76 and 37,514.40 is: 51,769.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,387.80 : 84,713.76 = 37,514.40 : x
  2. Step 2: Convert to fraction form
    61,387.80/84,713.76 = 37,514.40/x
  3. Step 3: Cross multiply
    61,387.80x = 84,713.76 × 37,514.40
  4. Step 4: Simplify right side
    61,387.80x = 3,177,985,878.14
  5. Step 5: Solve for x
    x = 3,177,985,878.14/61,387.80
  6. Step 6: Final answer
    x = 51,769.01

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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.