Home / 56,997.61-78,657.01-31,156.20

Finding the Fourth Proportional to 56,997.61, 78,657.01 and 31,156.20

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Solution

The fourth proportional to 56,997.61, 78,657.01 and 31,156.20 is: 42,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,997.61 : 78,657.01 = 31,156.20 : x
  2. Step 2: Convert to fraction form
    56,997.61/78,657.01 = 31,156.20/x
  3. Step 3: Cross multiply
    56,997.61x = 78,657.01 × 31,156.20
  4. Step 4: Simplify right side
    56,997.61x = 2,450,653,141.68
  5. Step 5: Solve for x
    x = 2,450,653,141.68/56,997.61
  6. Step 6: Final answer
    x = 42,995.72

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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.