Home / 56,931.18-78,563.01-31,437.10

Finding the Fourth Proportional to 56,931.18, 78,563.01 and 31,437.10

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Solution

The fourth proportional to 56,931.18, 78,563.01 and 31,437.10 is: 43,382.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,931.18 : 78,563.01 = 31,437.10 : x
  2. Step 2: Convert to fraction form
    56,931.18/78,563.01 = 31,437.10/x
  3. Step 3: Cross multiply
    56,931.18x = 78,563.01 × 31,437.10
  4. Step 4: Simplify right side
    56,931.18x = 2,469,793,201.67
  5. Step 5: Solve for x
    x = 2,469,793,201.67/56,931.18
  6. Step 6: Final answer
    x = 43,382.08

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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.