Home / 80,298.15-110,774.33-56,438.60

Finding the Fourth Proportional to 80,298.15, 110,774.33 and 56,438.60

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Solution

The fourth proportional to 80,298.15, 110,774.33 and 56,438.60 is: 77,859.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,298.15 : 110,774.33 = 56,438.60 : x
  2. Step 2: Convert to fraction form
    80,298.15/110,774.33 = 56,438.60/x
  3. Step 3: Cross multiply
    80,298.15x = 110,774.33 × 56,438.60
  4. Step 4: Simplify right side
    80,298.15x = 6,251,947,265.07
  5. Step 5: Solve for x
    x = 6,251,947,265.07/80,298.15
  6. Step 6: Final answer
    x = 77,859.17

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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.