Home / 87,424.96-130,947.90-54,153.40

Finding the Fourth Proportional to 87,424.96, 130,947.90 and 54,153.40

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Solution

The fourth proportional to 87,424.96, 130,947.90 and 54,153.40 is: 81,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,424.96 : 130,947.90 = 54,153.40 : x
  2. Step 2: Convert to fraction form
    87,424.96/130,947.90 = 54,153.40/x
  3. Step 3: Cross multiply
    87,424.96x = 130,947.90 × 54,153.40
  4. Step 4: Simplify right side
    87,424.96x = 7,091,274,007.86
  5. Step 5: Solve for x
    x = 7,091,274,007.86/87,424.96
  6. Step 6: Final answer
    x = 81,112.69

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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.