Home / 56,115.72-77,439.91-30,622.66

Finding the Fourth Proportional to 56,115.72, 77,439.91 and 30,622.66

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Solution

The fourth proportional to 56,115.72, 77,439.91 and 30,622.66 is: 42,259.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,115.72 : 77,439.91 = 30,622.66 : x
  2. Step 2: Convert to fraction form
    56,115.72/77,439.91 = 30,622.66/x
  3. Step 3: Cross multiply
    56,115.72x = 77,439.91 × 30,622.66
  4. Step 4: Simplify right side
    56,115.72x = 2,371,416,034.36
  5. Step 5: Solve for x
    x = 2,371,416,034.36/56,115.72
  6. Step 6: Final answer
    x = 42,259.39

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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.