Home / 56,873.30-78,490.77-42,508.22

Finding the Fourth Proportional to 56,873.30, 78,490.77 and 42,508.22

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Solution

The fourth proportional to 56,873.30, 78,490.77 and 42,508.22 is: 58,665.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,873.30 : 78,490.77 = 42,508.22 : x
  2. Step 2: Convert to fraction form
    56,873.30/78,490.77 = 42,508.22/x
  3. Step 3: Cross multiply
    56,873.30x = 78,490.77 × 42,508.22
  4. Step 4: Simplify right side
    56,873.30x = 3,336,502,919.13
  5. Step 5: Solve for x
    x = 3,336,502,919.13/56,873.30
  6. Step 6: Final answer
    x = 58,665.54

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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.