Home / 91,331.07-136,996.63-59,767.71

Finding the Fourth Proportional to 91,331.07, 136,996.63 and 59,767.71

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Solution

The fourth proportional to 91,331.07, 136,996.63 and 59,767.71 is: 89,651.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,331.07 : 136,996.63 = 59,767.71 : x
  2. Step 2: Convert to fraction form
    91,331.07/136,996.63 = 59,767.71/x
  3. Step 3: Cross multiply
    91,331.07x = 136,996.63 × 59,767.71
  4. Step 4: Simplify right side
    91,331.07x = 8,187,974,703.40
  5. Step 5: Solve for x
    x = 8,187,974,703.40/91,331.07
  6. Step 6: Final answer
    x = 89,651.58

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1.5x scale

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.