Home / 55,248.15-82,878.35-19,717.76

Finding the Fourth Proportional to 55,248.15, 82,878.35 and 19,717.76

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Solution

The fourth proportional to 55,248.15, 82,878.35 and 19,717.76 is: 29,578.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,248.15 : 82,878.35 = 19,717.76 : x
  2. Step 2: Convert to fraction form
    55,248.15/82,878.35 = 19,717.76/x
  3. Step 3: Cross multiply
    55,248.15x = 82,878.35 × 19,717.76
  4. Step 4: Simplify right side
    55,248.15x = 1,634,174,901.52
  5. Step 5: Solve for x
    x = 1,634,174,901.52/55,248.15
  6. Step 6: Final answer
    x = 29,578.82

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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.