Home / 85,514.24-118,009.20-47,788.16

Finding the Fourth Proportional to 85,514.24, 118,009.20 and 47,788.16

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Solution

The fourth proportional to 85,514.24, 118,009.20 and 47,788.16 is: 65,947.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.24 : 118,009.20 = 47,788.16 : x
  2. Step 2: Convert to fraction form
    85,514.24/118,009.20 = 47,788.16/x
  3. Step 3: Cross multiply
    85,514.24x = 118,009.20 × 47,788.16
  4. Step 4: Simplify right side
    85,514.24x = 5,639,442,531.07
  5. Step 5: Solve for x
    x = 5,639,442,531.07/85,514.24
  6. Step 6: Final answer
    x = 65,947.41

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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.