Home / 77,008.91-106,322.28-68,928.56

Finding the Fourth Proportional to 77,008.91, 106,322.28 and 68,928.56

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Solution

The fourth proportional to 77,008.91, 106,322.28 and 68,928.56 is: 95,166.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,008.91 : 106,322.28 = 68,928.56 : x
  2. Step 2: Convert to fraction form
    77,008.91/106,322.28 = 68,928.56/x
  3. Step 3: Cross multiply
    77,008.91x = 106,322.28 × 68,928.56
  4. Step 4: Simplify right side
    77,008.91x = 7,328,641,656.32
  5. Step 5: Solve for x
    x = 7,328,641,656.32/77,008.91
  6. Step 6: Final answer
    x = 95,166.15

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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.