Home / 87,509.48-120,725.18-53,519.40

Finding the Fourth Proportional to 87,509.48, 120,725.18 and 53,519.40

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Solution

The fourth proportional to 87,509.48, 120,725.18 and 53,519.40 is: 73,833.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,509.48 : 120,725.18 = 53,519.40 : x
  2. Step 2: Convert to fraction form
    87,509.48/120,725.18 = 53,519.40/x
  3. Step 3: Cross multiply
    87,509.48x = 120,725.18 × 53,519.40
  4. Step 4: Simplify right side
    87,509.48x = 6,461,139,432.64
  5. Step 5: Solve for x
    x = 6,461,139,432.64/87,509.48
  6. Step 6: Final answer
    x = 73,833.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.