Home / 77,115.16-106,409.52-42,655.24

Finding the Fourth Proportional to 77,115.16, 106,409.52 and 42,655.24

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Solution

The fourth proportional to 77,115.16, 106,409.52 and 42,655.24 is: 58,859.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,115.16 : 106,409.52 = 42,655.24 : x
  2. Step 2: Convert to fraction form
    77,115.16/106,409.52 = 42,655.24/x
  3. Step 3: Cross multiply
    77,115.16x = 106,409.52 × 42,655.24
  4. Step 4: Simplify right side
    77,115.16x = 4,538,923,613.88
  5. Step 5: Solve for x
    x = 4,538,923,613.88/77,115.16
  6. Step 6: Final answer
    x = 58,859.03

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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.