Home / 90,821.74-125,315.22-53,088.70

Finding the Fourth Proportional to 90,821.74, 125,315.22 and 53,088.70

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Solution

The fourth proportional to 90,821.74, 125,315.22 and 53,088.70 is: 73,251.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,821.74 : 125,315.22 = 53,088.70 : x
  2. Step 2: Convert to fraction form
    90,821.74/125,315.22 = 53,088.70/x
  3. Step 3: Cross multiply
    90,821.74x = 125,315.22 × 53,088.70
  4. Step 4: Simplify right side
    90,821.74x = 6,652,822,120.01
  5. Step 5: Solve for x
    x = 6,652,822,120.01/90,821.74
  6. Step 6: Final answer
    x = 73,251.43

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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.