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Finding the Fourth Proportional to 69,809.80, 96,337.94 and 37,978.93

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Solution

The fourth proportional to 69,809.80, 96,337.94 and 37,978.93 is: 52,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,809.80 : 96,337.94 = 37,978.93 : x
  2. Step 2: Convert to fraction form
    69,809.80/96,337.94 = 37,978.93/x
  3. Step 3: Cross multiply
    69,809.80x = 96,337.94 × 37,978.93
  4. Step 4: Simplify right side
    69,809.80x = 3,658,811,472.31
  5. Step 5: Solve for x
    x = 3,658,811,472.31/69,809.80
  6. Step 6: Final answer
    x = 52,411.14

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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.