Home / 56,671.16-78,205.10-31,176.03

Finding the Fourth Proportional to 56,671.16, 78,205.10 and 31,176.03

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Solution

The fourth proportional to 56,671.16, 78,205.10 and 31,176.03 is: 43,022.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,671.16 : 78,205.10 = 31,176.03 : x
  2. Step 2: Convert to fraction form
    56,671.16/78,205.10 = 31,176.03/x
  3. Step 3: Cross multiply
    56,671.16x = 78,205.10 × 31,176.03
  4. Step 4: Simplify right side
    56,671.16x = 2,438,124,387.87
  5. Step 5: Solve for x
    x = 2,438,124,387.87/56,671.16
  6. Step 6: Final answer
    x = 43,022.32

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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.