Home / 85,514.07-118,009.59-47,788.32

Finding the Fourth Proportional to 85,514.07, 118,009.59 and 47,788.32

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Solution

The fourth proportional to 85,514.07, 118,009.59 and 47,788.32 is: 65,947.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,514.07 : 118,009.59 = 47,788.32 : x
  2. Step 2: Convert to fraction form
    85,514.07/118,009.59 = 47,788.32/x
  3. Step 3: Cross multiply
    85,514.07x = 118,009.59 × 47,788.32
  4. Step 4: Simplify right side
    85,514.07x = 5,639,480,049.99
  5. Step 5: Solve for x
    x = 5,639,480,049.99/85,514.07
  6. Step 6: Final answer
    x = 65,947.98

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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.