Home / 56,624.16-78,139.44-31,473.12

Finding the Fourth Proportional to 56,624.16, 78,139.44 and 31,473.12

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Solution

The fourth proportional to 56,624.16, 78,139.44 and 31,473.12 is: 43,431.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,624.16 : 78,139.44 = 31,473.12 : x
  2. Step 2: Convert to fraction form
    56,624.16/78,139.44 = 31,473.12/x
  3. Step 3: Cross multiply
    56,624.16x = 78,139.44 × 31,473.12
  4. Step 4: Simplify right side
    56,624.16x = 2,459,291,971.85
  5. Step 5: Solve for x
    x = 2,459,291,971.85/56,624.16
  6. Step 6: Final answer
    x = 43,431.85

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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.