Home / 90,590.13-125,010.18-50,306.45

Finding the Fourth Proportional to 90,590.13, 125,010.18 and 50,306.45

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Solution

The fourth proportional to 90,590.13, 125,010.18 and 50,306.45 is: 69,420.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,590.13 : 125,010.18 = 50,306.45 : x
  2. Step 2: Convert to fraction form
    90,590.13/125,010.18 = 50,306.45/x
  3. Step 3: Cross multiply
    90,590.13x = 125,010.18 × 50,306.45
  4. Step 4: Simplify right side
    90,590.13x = 6,288,817,744.61
  5. Step 5: Solve for x
    x = 6,288,817,744.61/90,590.13
  6. Step 6: Final answer
    x = 69,420.56

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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.