Home / 76,282.18-105,275.65-42,301.33

Finding the Fourth Proportional to 76,282.18, 105,275.65 and 42,301.33

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Solution

The fourth proportional to 76,282.18, 105,275.65 and 42,301.33 is: 58,379.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,282.18 : 105,275.65 = 42,301.33 : x
  2. Step 2: Convert to fraction form
    76,282.18/105,275.65 = 42,301.33/x
  3. Step 3: Cross multiply
    76,282.18x = 105,275.65 × 42,301.33
  4. Step 4: Simplify right side
    76,282.18x = 4,453,299,273.73
  5. Step 5: Solve for x
    x = 4,453,299,273.73/76,282.18
  6. Step 6: Final answer
    x = 58,379.29

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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.