Home / 85,732.09-118,301.21-47,490.57

Finding the Fourth Proportional to 85,732.09, 118,301.21 and 47,490.57

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Solution

The fourth proportional to 85,732.09, 118,301.21 and 47,490.57 is: 65,531.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,732.09 : 118,301.21 = 47,490.57 : x
  2. Step 2: Convert to fraction form
    85,732.09/118,301.21 = 47,490.57/x
  3. Step 3: Cross multiply
    85,732.09x = 118,301.21 × 47,490.57
  4. Step 4: Simplify right side
    85,732.09x = 5,618,191,835.23
  5. Step 5: Solve for x
    x = 5,618,191,835.23/85,732.09
  6. Step 6: Final answer
    x = 65,531.96

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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.