Home / 88,521.78-122,156.23-50,281.20

Finding the Fourth Proportional to 88,521.78, 122,156.23 and 50,281.20

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Solution

The fourth proportional to 88,521.78, 122,156.23 and 50,281.20 is: 69,385.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,521.78 : 122,156.23 = 50,281.20 : x
  2. Step 2: Convert to fraction form
    88,521.78/122,156.23 = 50,281.20/x
  3. Step 3: Cross multiply
    88,521.78x = 122,156.23 × 50,281.20
  4. Step 4: Simplify right side
    88,521.78x = 6,142,161,831.88
  5. Step 5: Solve for x
    x = 6,142,161,831.88/88,521.78
  6. Step 6: Final answer
    x = 69,385.88

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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.