Home / 85,508.19-118,001.12-47,782.44

Finding the Fourth Proportional to 85,508.19, 118,001.12 and 47,782.44

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Solution

The fourth proportional to 85,508.19, 118,001.12 and 47,782.44 is: 65,939.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,508.19 : 118,001.12 = 47,782.44 : x
  2. Step 2: Convert to fraction form
    85,508.19/118,001.12 = 47,782.44/x
  3. Step 3: Cross multiply
    85,508.19x = 118,001.12 × 47,782.44
  4. Step 4: Simplify right side
    85,508.19x = 5,638,381,197.42
  5. Step 5: Solve for x
    x = 5,638,381,197.42/85,508.19
  6. Step 6: Final answer
    x = 65,939.66

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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.