Home / 90,015.17-124,220.01-49,726.31

Finding the Fourth Proportional to 90,015.17, 124,220.01 and 49,726.31

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Solution

The fourth proportional to 90,015.17, 124,220.01 and 49,726.31 is: 68,621.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,015.17 : 124,220.01 = 49,726.31 : x
  2. Step 2: Convert to fraction form
    90,015.17/124,220.01 = 49,726.31/x
  3. Step 3: Cross multiply
    90,015.17x = 124,220.01 × 49,726.31
  4. Step 4: Simplify right side
    90,015.17x = 6,177,001,871.27
  5. Step 5: Solve for x
    x = 6,177,001,871.27/90,015.17
  6. Step 6: Final answer
    x = 68,621.78

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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.