Home / 91,285.16-136,927.79-59,721.74

Finding the Fourth Proportional to 91,285.16, 136,927.79 and 59,721.74

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Solution

The fourth proportional to 91,285.16, 136,927.79 and 59,721.74 is: 89,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,285.16 : 136,927.79 = 59,721.74 : x
  2. Step 2: Convert to fraction form
    91,285.16/136,927.79 = 59,721.74/x
  3. Step 3: Cross multiply
    91,285.16x = 136,927.79 × 59,721.74
  4. Step 4: Simplify right side
    91,285.16x = 8,177,565,188.52
  5. Step 5: Solve for x
    x = 8,177,565,188.52/91,285.16
  6. Step 6: Final answer
    x = 89,582.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.