Home / 85,984.83-118,664.88-47,748.78

Finding the Fourth Proportional to 85,984.83, 118,664.88 and 47,748.78

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Solution

The fourth proportional to 85,984.83, 118,664.88 and 47,748.78 is: 65,896.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,984.83 : 118,664.88 = 47,748.78 : x
  2. Step 2: Convert to fraction form
    85,984.83/118,664.88 = 47,748.78/x
  3. Step 3: Cross multiply
    85,984.83x = 118,664.88 × 47,748.78
  4. Step 4: Simplify right side
    85,984.83x = 5,666,103,248.85
  5. Step 5: Solve for x
    x = 5,666,103,248.85/85,984.83
  6. Step 6: Final answer
    x = 65,896.55

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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.