Home / 81,716.42-112,810.66-56,522.18

Finding the Fourth Proportional to 81,716.42, 112,810.66 and 56,522.18

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Solution

The fourth proportional to 81,716.42, 112,810.66 and 56,522.18 is: 78,029.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,716.42 : 112,810.66 = 56,522.18 : x
  2. Step 2: Convert to fraction form
    81,716.42/112,810.66 = 56,522.18/x
  3. Step 3: Cross multiply
    81,716.42x = 112,810.66 × 56,522.18
  4. Step 4: Simplify right side
    81,716.42x = 6,376,304,430.44
  5. Step 5: Solve for x
    x = 6,376,304,430.44/81,716.42
  6. Step 6: Final answer
    x = 78,029.66

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1.5x scale

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.