Home / 96,690-133,432.24-58,972.08

Finding the Fourth Proportional to 96,690, 133,432.24 and 58,972.08

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Solution

The fourth proportional to 96,690, 133,432.24 and 58,972.08 is: 81,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,690 : 133,432.24 = 58,972.08 : x
  2. Step 2: Convert to fraction form
    96,690/133,432.24 = 58,972.08/x
  3. Step 3: Cross multiply
    96,690x = 133,432.24 × 58,972.08
  4. Step 4: Simplify right side
    96,690x = 7,868,776,731.86
  5. Step 5: Solve for x
    x = 7,868,776,731.86/96,690
  6. Step 6: Final answer
    x = 81,381.49

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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.