Home / 76,071.28-104,976.36-42,081.16

Finding the Fourth Proportional to 76,071.28, 104,976.36 and 42,081.16

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Solution

The fourth proportional to 76,071.28, 104,976.36 and 42,081.16 is: 58,070.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,071.28 : 104,976.36 = 42,081.16 : x
  2. Step 2: Convert to fraction form
    76,071.28/104,976.36 = 42,081.16/x
  3. Step 3: Cross multiply
    76,071.28x = 104,976.36 × 42,081.16
  4. Step 4: Simplify right side
    76,071.28x = 4,417,527,001.38
  5. Step 5: Solve for x
    x = 4,417,527,001.38/76,071.28
  6. Step 6: Final answer
    x = 58,070.89

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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.