Home / 56,557.11-78,049.74-31,065.83

Finding the Fourth Proportional to 56,557.11, 78,049.74 and 31,065.83

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Solution

The fourth proportional to 56,557.11, 78,049.74 and 31,065.83 is: 42,871.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,557.11 : 78,049.74 = 31,065.83 : x
  2. Step 2: Convert to fraction form
    56,557.11/78,049.74 = 31,065.83/x
  3. Step 3: Cross multiply
    56,557.11x = 78,049.74 × 31,065.83
  4. Step 4: Simplify right side
    56,557.11x = 2,424,679,666.43
  5. Step 5: Solve for x
    x = 2,424,679,666.43/56,557.11
  6. Step 6: Final answer
    x = 42,871.35

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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.