Home / 56,505.04-77,977.95-31,013.79

Finding the Fourth Proportional to 56,505.04, 77,977.95 and 31,013.79

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Solution

The fourth proportional to 56,505.04, 77,977.95 and 31,013.79 is: 42,799.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,505.04 : 77,977.95 = 31,013.79 : x
  2. Step 2: Convert to fraction form
    56,505.04/77,977.95 = 31,013.79/x
  3. Step 3: Cross multiply
    56,505.04x = 77,977.95 × 31,013.79
  4. Step 4: Simplify right side
    56,505.04x = 2,418,391,610.86
  5. Step 5: Solve for x
    x = 2,418,391,610.86/56,505.04
  6. Step 6: Final answer
    x = 42,799.57

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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.