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Finding the Fourth Proportional to 83,365.52, 125,047.74 and 21,036.08

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Solution

The fourth proportional to 83,365.52, 125,047.74 and 21,036.08 is: 31,553.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,365.52 : 125,047.74 = 21,036.08 : x
  2. Step 2: Convert to fraction form
    83,365.52/125,047.74 = 21,036.08/x
  3. Step 3: Cross multiply
    83,365.52x = 125,047.74 × 21,036.08
  4. Step 4: Simplify right side
    83,365.52x = 2,630,514,262.46
  5. Step 5: Solve for x
    x = 2,630,514,262.46/83,365.52
  6. Step 6: Final answer
    x = 31,553.98

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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.