Home / 77,755.32-116,026.36-69,377.76

Finding the Fourth Proportional to 77,755.32, 116,026.36 and 69,377.76

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Solution

The fourth proportional to 77,755.32, 116,026.36 and 69,377.76 is: 103,525.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,755.32 : 116,026.36 = 69,377.76 : x
  2. Step 2: Convert to fraction form
    77,755.32/116,026.36 = 69,377.76/x
  3. Step 3: Cross multiply
    77,755.32x = 116,026.36 × 69,377.76
  4. Step 4: Simplify right side
    77,755.32x = 8,049,648,957.75
  5. Step 5: Solve for x
    x = 8,049,648,957.75/77,755.32
  6. Step 6: Final answer
    x = 103,525.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.