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Finding the Fourth Proportional to 62,980.01, 86,811.11 and 42,555.69

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Solution

The fourth proportional to 62,980.01, 86,811.11 and 42,555.69 is: 58,658.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,980.01 : 86,811.11 = 42,555.69 : x
  2. Step 2: Convert to fraction form
    62,980.01/86,811.11 = 42,555.69/x
  3. Step 3: Cross multiply
    62,980.01x = 86,811.11 × 42,555.69
  4. Step 4: Simplify right side
    62,980.01x = 3,694,306,632.52
  5. Step 5: Solve for x
    x = 3,694,306,632.52/62,980.01
  6. Step 6: Final answer
    x = 58,658.40

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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.