Home / 85,729.52-118,308.63-48,934.98

Finding the Fourth Proportional to 85,729.52, 118,308.63 and 48,934.98

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Solution

The fourth proportional to 85,729.52, 118,308.63 and 48,934.98 is: 67,531.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,729.52 : 118,308.63 = 48,934.98 : x
  2. Step 2: Convert to fraction form
    85,729.52/118,308.63 = 48,934.98/x
  3. Step 3: Cross multiply
    85,729.52x = 118,308.63 × 48,934.98
  4. Step 4: Simplify right side
    85,729.52x = 5,789,430,626.38
  5. Step 5: Solve for x
    x = 5,789,430,626.38/85,729.52
  6. Step 6: Final answer
    x = 67,531.35

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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.