Home / 56,716.16-78,267.53-31,565.66

Finding the Fourth Proportional to 56,716.16, 78,267.53 and 31,565.66

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Solution

The fourth proportional to 56,716.16, 78,267.53 and 31,565.66 is: 43,560.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,716.16 : 78,267.53 = 31,565.66 : x
  2. Step 2: Convert to fraction form
    56,716.16/78,267.53 = 31,565.66/x
  3. Step 3: Cross multiply
    56,716.16x = 78,267.53 × 31,565.66
  4. Step 4: Simplify right side
    56,716.16x = 2,470,565,928.60
  5. Step 5: Solve for x
    x = 2,470,565,928.60/56,716.16
  6. Step 6: Final answer
    x = 43,560.18

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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.