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Finding the Fourth Proportional to 83,625.54, 115,402.95 and 45,385.26

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Solution

The fourth proportional to 83,625.54, 115,402.95 and 45,385.26 is: 62,631.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,625.54 : 115,402.95 = 45,385.26 : x
  2. Step 2: Convert to fraction form
    83,625.54/115,402.95 = 45,385.26/x
  3. Step 3: Cross multiply
    83,625.54x = 115,402.95 × 45,385.26
  4. Step 4: Simplify right side
    83,625.54x = 5,237,592,890.52
  5. Step 5: Solve for x
    x = 5,237,592,890.52/83,625.54
  6. Step 6: Final answer
    x = 62,631.50

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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.