Home / 87,206.60-120,345.36-49,480.76

Finding the Fourth Proportional to 87,206.60, 120,345.36 and 49,480.76

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Solution

The fourth proportional to 87,206.60, 120,345.36 and 49,480.76 is: 68,283.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,206.60 : 120,345.36 = 49,480.76 : x
  2. Step 2: Convert to fraction form
    87,206.60/120,345.36 = 49,480.76/x
  3. Step 3: Cross multiply
    87,206.60x = 120,345.36 × 49,480.76
  4. Step 4: Simplify right side
    87,206.60x = 5,954,779,875.27
  5. Step 5: Solve for x
    x = 5,954,779,875.27/87,206.60
  6. Step 6: Final answer
    x = 68,283.59

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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.