Home / 56,857.50-78,463.35-31,706.46

Finding the Fourth Proportional to 56,857.50, 78,463.35 and 31,706.46

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Solution

The fourth proportional to 56,857.50, 78,463.35 and 31,706.46 is: 43,754.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,857.50 : 78,463.35 = 31,706.46 : x
  2. Step 2: Convert to fraction form
    56,857.50/78,463.35 = 31,706.46/x
  3. Step 3: Cross multiply
    56,857.50x = 78,463.35 × 31,706.46
  4. Step 4: Simplify right side
    56,857.50x = 2,487,795,068.24
  5. Step 5: Solve for x
    x = 2,487,795,068.24/56,857.50
  6. Step 6: Final answer
    x = 43,754.91

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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.