Home / 56,753.32-78,318.86-31,259.16

Finding the Fourth Proportional to 56,753.32, 78,318.86 and 31,259.16

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Solution

The fourth proportional to 56,753.32, 78,318.86 and 31,259.16 is: 43,137.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,753.32 : 78,318.86 = 31,259.16 : x
  2. Step 2: Convert to fraction form
    56,753.32/78,318.86 = 31,259.16/x
  3. Step 3: Cross multiply
    56,753.32x = 78,318.86 × 31,259.16
  4. Step 4: Simplify right side
    56,753.32x = 2,448,181,775.76
  5. Step 5: Solve for x
    x = 2,448,181,775.76/56,753.32
  6. Step 6: Final answer
    x = 43,137.24

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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.