Home / 78,472.14-108,315.27-53,336.22

Finding the Fourth Proportional to 78,472.14, 108,315.27 and 53,336.22

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Solution

The fourth proportional to 78,472.14, 108,315.27 and 53,336.22 is: 73,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,472.14 : 108,315.27 = 53,336.22 : x
  2. Step 2: Convert to fraction form
    78,472.14/108,315.27 = 53,336.22/x
  3. Step 3: Cross multiply
    78,472.14x = 108,315.27 × 53,336.22
  4. Step 4: Simplify right side
    78,472.14x = 5,777,127,070.08
  5. Step 5: Solve for x
    x = 5,777,127,070.08/78,472.14
  6. Step 6: Final answer
    x = 73,620.10

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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.