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Finding the Fourth Proportional to 62,138.69, 85,724.10 and 41,988.23

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Solution

The fourth proportional to 62,138.69, 85,724.10 and 41,988.23 is: 57,925.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,138.69 : 85,724.10 = 41,988.23 : x
  2. Step 2: Convert to fraction form
    62,138.69/85,724.10 = 41,988.23/x
  3. Step 3: Cross multiply
    62,138.69x = 85,724.10 × 41,988.23
  4. Step 4: Simplify right side
    62,138.69x = 3,599,402,798.72
  5. Step 5: Solve for x
    x = 3,599,402,798.72/62,138.69
  6. Step 6: Final answer
    x = 57,925.31

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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.