Home / 84,670.05-127,005.08-42,679.65

Finding the Fourth Proportional to 84,670.05, 127,005.08 and 42,679.65

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Solution

The fourth proportional to 84,670.05, 127,005.08 and 42,679.65 is: 64,019.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,670.05 : 127,005.08 = 42,679.65 : x
  2. Step 2: Convert to fraction form
    84,670.05/127,005.08 = 42,679.65/x
  3. Step 3: Cross multiply
    84,670.05x = 127,005.08 × 42,679.65
  4. Step 4: Simplify right side
    84,670.05x = 5,420,532,149.22
  5. Step 5: Solve for x
    x = 5,420,532,149.22/84,670.05
  6. Step 6: Final answer
    x = 64,019.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.