Home / 47,890.76-66,071.38-47,816.92

Finding the Fourth Proportional to 47,890.76, 66,071.38 and 47,816.92

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Solution

The fourth proportional to 47,890.76, 66,071.38 and 47,816.92 is: 65,969.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,890.76 : 66,071.38 = 47,816.92 : x
  2. Step 2: Convert to fraction form
    47,890.76/66,071.38 = 47,816.92/x
  3. Step 3: Cross multiply
    47,890.76x = 66,071.38 × 47,816.92
  4. Step 4: Simplify right side
    47,890.76x = 3,159,329,891.75
  5. Step 5: Solve for x
    x = 3,159,329,891.75/47,890.76
  6. Step 6: Final answer
    x = 65,969.51

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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.