Home / 78,553.12-108,417.36-50,257.84

Finding the Fourth Proportional to 78,553.12, 108,417.36 and 50,257.84

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Solution

The fourth proportional to 78,553.12, 108,417.36 and 50,257.84 is: 69,364.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,553.12 : 108,417.36 = 50,257.84 : x
  2. Step 2: Convert to fraction form
    78,553.12/108,417.36 = 50,257.84/x
  3. Step 3: Cross multiply
    78,553.12x = 108,417.36 × 50,257.84
  4. Step 4: Simplify right side
    78,553.12x = 5,448,822,332.10
  5. Step 5: Solve for x
    x = 5,448,822,332.10/78,553.12
  6. Step 6: Final answer
    x = 69,364.81

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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.