Home / 56,660.85-78,188.90-31,162.32

Finding the Fourth Proportional to 56,660.85, 78,188.90 and 31,162.32

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Solution

The fourth proportional to 56,660.85, 78,188.90 and 31,162.32 is: 43,002.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,660.85 : 78,188.90 = 31,162.32 : x
  2. Step 2: Convert to fraction form
    56,660.85/78,188.90 = 31,162.32/x
  3. Step 3: Cross multiply
    56,660.85x = 78,188.90 × 31,162.32
  4. Step 4: Simplify right side
    56,660.85x = 2,436,547,366.44
  5. Step 5: Solve for x
    x = 2,436,547,366.44/56,660.85
  6. Step 6: Final answer
    x = 43,002.31

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1.5x scale

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.