Home / 56,151.68-77,488.11-30,657.06

Finding the Fourth Proportional to 56,151.68, 77,488.11 and 30,657.06

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Solution

The fourth proportional to 56,151.68, 77,488.11 and 30,657.06 is: 42,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,151.68 : 77,488.11 = 30,657.06 : x
  2. Step 2: Convert to fraction form
    56,151.68/77,488.11 = 30,657.06/x
  3. Step 3: Cross multiply
    56,151.68x = 77,488.11 × 30,657.06
  4. Step 4: Simplify right side
    56,151.68x = 2,375,557,637.56
  5. Step 5: Solve for x
    x = 2,375,557,637.56/56,151.68
  6. Step 6: Final answer
    x = 42,306.09

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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.