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Finding the Fourth Proportional to 87,112.80, 130,717.80 and 37,184.40

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Solution

The fourth proportional to 87,112.80, 130,717.80 and 37,184.40 is: 55,797.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,112.80 : 130,717.80 = 37,184.40 : x
  2. Step 2: Convert to fraction form
    87,112.80/130,717.80 = 37,184.40/x
  3. Step 3: Cross multiply
    87,112.80x = 130,717.80 × 37,184.40
  4. Step 4: Simplify right side
    87,112.80x = 4,860,662,962.32
  5. Step 5: Solve for x
    x = 4,860,662,962.32/87,112.80
  6. Step 6: Final answer
    x = 55,797.35

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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.