Home / 81,331.86-112,237.94-45,521.87

Finding the Fourth Proportional to 81,331.86, 112,237.94 and 45,521.87

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Solution

The fourth proportional to 81,331.86, 112,237.94 and 45,521.87 is: 62,820.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,331.86 : 112,237.94 = 45,521.87 : x
  2. Step 2: Convert to fraction form
    81,331.86/112,237.94 = 45,521.87/x
  3. Step 3: Cross multiply
    81,331.86x = 112,237.94 × 45,521.87
  4. Step 4: Simplify right side
    81,331.86x = 5,109,280,913.75
  5. Step 5: Solve for x
    x = 5,109,280,913.75/81,331.86
  6. Step 6: Final answer
    x = 62,820.17

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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.