Home / 85,275.29-117,680.81-47,036.49

Finding the Fourth Proportional to 85,275.29, 117,680.81 and 47,036.49

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Solution

The fourth proportional to 85,275.29, 117,680.81 and 47,036.49 is: 64,910.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,275.29 : 117,680.81 = 47,036.49 : x
  2. Step 2: Convert to fraction form
    85,275.29/117,680.81 = 47,036.49/x
  3. Step 3: Cross multiply
    85,275.29x = 117,680.81 × 47,036.49
  4. Step 4: Simplify right side
    85,275.29x = 5,535,292,007.57
  5. Step 5: Solve for x
    x = 5,535,292,007.57/85,275.29
  6. Step 6: Final answer
    x = 64,910.86

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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.