Home / 55,987.20-77,263.17-30,494.74

Finding the Fourth Proportional to 55,987.20, 77,263.17 and 30,494.74

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Solution

The fourth proportional to 55,987.20, 77,263.17 and 30,494.74 is: 42,083.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,987.20 : 77,263.17 = 30,494.74 : x
  2. Step 2: Convert to fraction form
    55,987.20/77,263.17 = 30,494.74/x
  3. Step 3: Cross multiply
    55,987.20x = 77,263.17 × 30,494.74
  4. Step 4: Simplify right side
    55,987.20x = 2,356,120,280.73
  5. Step 5: Solve for x
    x = 2,356,120,280.73/55,987.20
  6. Step 6: Final answer
    x = 42,083.20

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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.