Home / 145,239.44-217,765.92-56,398.28

Finding the Fourth Proportional to 145,239.44, 217,765.92 and 56,398.28

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Solution

The fourth proportional to 145,239.44, 217,765.92 and 56,398.28 is: 84,561.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,239.44 : 217,765.92 = 56,398.28 : x
  2. Step 2: Convert to fraction form
    145,239.44/217,765.92 = 56,398.28/x
  3. Step 3: Cross multiply
    145,239.44x = 217,765.92 × 56,398.28
  4. Step 4: Simplify right side
    145,239.44x = 12,281,623,330.62
  5. Step 5: Solve for x
    x = 12,281,623,330.62/145,239.44
  6. Step 6: Final answer
    x = 84,561.21

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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.