Home / 72,335.76-99,775.68-52,159.20

Finding the Fourth Proportional to 72,335.76, 99,775.68 and 52,159.20

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Solution

The fourth proportional to 72,335.76, 99,775.68 and 52,159.20 is: 71,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,335.76 : 99,775.68 = 52,159.20 : x
  2. Step 2: Convert to fraction form
    72,335.76/99,775.68 = 52,159.20/x
  3. Step 3: Cross multiply
    72,335.76x = 99,775.68 × 52,159.20
  4. Step 4: Simplify right side
    72,335.76x = 5,204,219,648.26
  5. Step 5: Solve for x
    x = 5,204,219,648.26/72,335.76
  6. Step 6: Final answer
    x = 71,945.32

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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.