Home / 91,079.23-136,670.69-59,929.15

Finding the Fourth Proportional to 91,079.23, 136,670.69 and 59,929.15

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Solution

The fourth proportional to 91,079.23, 136,670.69 and 59,929.15 is: 89,927.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,079.23 : 136,670.69 = 59,929.15 : x
  2. Step 2: Convert to fraction form
    91,079.23/136,670.69 = 59,929.15/x
  3. Step 3: Cross multiply
    91,079.23x = 136,670.69 × 59,929.15
  4. Step 4: Simplify right side
    91,079.23x = 8,190,558,281.61
  5. Step 5: Solve for x
    x = 8,190,558,281.61/91,079.23
  6. Step 6: Final answer
    x = 89,927.84

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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.