Home / 90,170.46-124,420.95-58,340.70

Finding the Fourth Proportional to 90,170.46, 124,420.95 and 58,340.70

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Solution

The fourth proportional to 90,170.46, 124,420.95 and 58,340.70 is: 80,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,170.46 : 124,420.95 = 58,340.70 : x
  2. Step 2: Convert to fraction form
    90,170.46/124,420.95 = 58,340.70/x
  3. Step 3: Cross multiply
    90,170.46x = 124,420.95 × 58,340.70
  4. Step 4: Simplify right side
    90,170.46x = 7,258,805,317.67
  5. Step 5: Solve for x
    x = 7,258,805,317.67/90,170.46
  6. Step 6: Final answer
    x = 80,500.92

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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.