Home / 85,607.79-118,132.34-47,874.75

Finding the Fourth Proportional to 85,607.79, 118,132.34 and 47,874.75

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Solution

The fourth proportional to 85,607.79, 118,132.34 and 47,874.75 is: 66,063.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,607.79 : 118,132.34 = 47,874.75 : x
  2. Step 2: Convert to fraction form
    85,607.79/118,132.34 = 47,874.75/x
  3. Step 3: Cross multiply
    85,607.79x = 118,132.34 × 47,874.75
  4. Step 4: Simplify right side
    85,607.79x = 5,655,556,005.04
  5. Step 5: Solve for x
    x = 5,655,556,005.04/85,607.79
  6. Step 6: Final answer
    x = 66,063.57

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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.