Home / 77,642.56-116,462.90-54,752.12

Finding the Fourth Proportional to 77,642.56, 116,462.90 and 54,752.12

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Solution

The fourth proportional to 77,642.56, 116,462.90 and 54,752.12 is: 82,127.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,642.56 : 116,462.90 = 54,752.12 : x
  2. Step 2: Convert to fraction form
    77,642.56/116,462.90 = 54,752.12/x
  3. Step 3: Cross multiply
    77,642.56x = 116,462.90 × 54,752.12
  4. Step 4: Simplify right side
    77,642.56x = 6,376,590,676.35
  5. Step 5: Solve for x
    x = 6,376,590,676.35/77,642.56
  6. Step 6: Final answer
    x = 82,127.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.