Home / 56,152.31-77,490.35-30,658.89

Finding the Fourth Proportional to 56,152.31, 77,490.35 and 30,658.89

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Solution

The fourth proportional to 56,152.31, 77,490.35 and 30,658.89 is: 42,309.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,152.31 : 77,490.35 = 30,658.89 : x
  2. Step 2: Convert to fraction form
    56,152.31/77,490.35 = 30,658.89/x
  3. Step 3: Cross multiply
    56,152.31x = 77,490.35 × 30,658.89
  4. Step 4: Simplify right side
    56,152.31x = 2,375,768,173.78
  5. Step 5: Solve for x
    x = 2,375,768,173.78/56,152.31
  6. Step 6: Final answer
    x = 42,309.36

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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.