Home / 56,418.12-84,544.02-31,423.76

Finding the Fourth Proportional to 56,418.12, 84,544.02 and 31,423.76

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Solution

The fourth proportional to 56,418.12, 84,544.02 and 31,423.76 is: 47,089.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,418.12 : 84,544.02 = 31,423.76 : x
  2. Step 2: Convert to fraction form
    56,418.12/84,544.02 = 31,423.76/x
  3. Step 3: Cross multiply
    56,418.12x = 84,544.02 × 31,423.76
  4. Step 4: Simplify right side
    56,418.12x = 2,656,690,993.92
  5. Step 5: Solve for x
    x = 2,656,690,993.92/56,418.12
  6. Step 6: Final answer
    x = 47,089.32

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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.