Home / 56,740.16-78,292.32-31,584.80

Finding the Fourth Proportional to 56,740.16, 78,292.32 and 31,584.80

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Solution

The fourth proportional to 56,740.16, 78,292.32 and 31,584.80 is: 43,581.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,740.16 : 78,292.32 = 31,584.80 : x
  2. Step 2: Convert to fraction form
    56,740.16/78,292.32 = 31,584.80/x
  3. Step 3: Cross multiply
    56,740.16x = 78,292.32 × 31,584.80
  4. Step 4: Simplify right side
    56,740.16x = 2,472,847,268.74
  5. Step 5: Solve for x
    x = 2,472,847,268.74/56,740.16
  6. Step 6: Final answer
    x = 43,581.96

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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.