Home / 85,117.38-117,465.62-47,391.63

Finding the Fourth Proportional to 85,117.38, 117,465.62 and 47,391.63

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Solution

The fourth proportional to 85,117.38, 117,465.62 and 47,391.63 is: 65,402.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,117.38 : 117,465.62 = 47,391.63 : x
  2. Step 2: Convert to fraction form
    85,117.38/117,465.62 = 47,391.63/x
  3. Step 3: Cross multiply
    85,117.38x = 117,465.62 × 47,391.63
  4. Step 4: Simplify right side
    85,117.38x = 5,566,887,200.76
  5. Step 5: Solve for x
    x = 5,566,887,200.76/85,117.38
  6. Step 6: Final answer
    x = 65,402.47

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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.