Home / 72,935.20-109,159.80-52,887.70

Finding the Fourth Proportional to 72,935.20, 109,159.80 and 52,887.70

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Solution

The fourth proportional to 72,935.20, 109,159.80 and 52,887.70 is: 79,155.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,935.20 : 109,159.80 = 52,887.70 : x
  2. Step 2: Convert to fraction form
    72,935.20/109,159.80 = 52,887.70/x
  3. Step 3: Cross multiply
    72,935.20x = 109,159.80 × 52,887.70
  4. Step 4: Simplify right side
    72,935.20x = 5,773,210,754.46
  5. Step 5: Solve for x
    x = 5,773,210,754.46/72,935.20
  6. Step 6: Final answer
    x = 79,155.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.