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Finding the Fourth Proportional to 61,725, 85,157.01 and 45,630.95

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Solution

The fourth proportional to 61,725, 85,157.01 and 45,630.95 is: 62,953.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,725 : 85,157.01 = 45,630.95 : x
  2. Step 2: Convert to fraction form
    61,725/85,157.01 = 45,630.95/x
  3. Step 3: Cross multiply
    61,725x = 85,157.01 × 45,630.95
  4. Step 4: Simplify right side
    61,725x = 3,885,795,265.46
  5. Step 5: Solve for x
    x = 3,885,795,265.46/61,725
  6. Step 6: Final answer
    x = 62,953.35

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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.