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Finding the Fourth Proportional to 87,138.66, 130,541.36 and 58,920.22

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Solution

The fourth proportional to 87,138.66, 130,541.36 and 58,920.22 is: 88,267.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,138.66 : 130,541.36 = 58,920.22 : x
  2. Step 2: Convert to fraction form
    87,138.66/130,541.36 = 58,920.22/x
  3. Step 3: Cross multiply
    87,138.66x = 130,541.36 × 58,920.22
  4. Step 4: Simplify right side
    87,138.66x = 7,691,525,518.87
  5. Step 5: Solve for x
    x = 7,691,525,518.87/87,138.66
  6. Step 6: Final answer
    x = 88,267.66

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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.