Home / 55,761.40-83,646.68-15,780.45

Finding the Fourth Proportional to 55,761.40, 83,646.68 and 15,780.45

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Solution

The fourth proportional to 55,761.40, 83,646.68 and 15,780.45 is: 23,671.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,761.40 : 83,646.68 = 15,780.45 : x
  2. Step 2: Convert to fraction form
    55,761.40/83,646.68 = 15,780.45/x
  3. Step 3: Cross multiply
    55,761.40x = 83,646.68 × 15,780.45
  4. Step 4: Simplify right side
    55,761.40x = 1,319,982,486.18
  5. Step 5: Solve for x
    x = 1,319,982,486.18/55,761.40
  6. Step 6: Final answer
    x = 23,671.98

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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.