Home / 56,911.20-78,500.80-34,555.20

Finding the Fourth Proportional to 56,911.20, 78,500.80 and 34,555.20

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Solution

The fourth proportional to 56,911.20, 78,500.80 and 34,555.20 is: 47,663.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,911.20 : 78,500.80 = 34,555.20 : x
  2. Step 2: Convert to fraction form
    56,911.20/78,500.80 = 34,555.20/x
  3. Step 3: Cross multiply
    56,911.20x = 78,500.80 × 34,555.20
  4. Step 4: Simplify right side
    56,911.20x = 2,712,610,844.16
  5. Step 5: Solve for x
    x = 2,712,610,844.16/56,911.20
  6. Step 6: Final answer
    x = 47,663.92

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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.