Home / 76,243.14-105,215.76-42,252.18

Finding the Fourth Proportional to 76,243.14, 105,215.76 and 42,252.18

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Solution

The fourth proportional to 76,243.14, 105,215.76 and 42,252.18 is: 58,308.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,243.14 : 105,215.76 = 42,252.18 : x
  2. Step 2: Convert to fraction form
    76,243.14/105,215.76 = 42,252.18/x
  3. Step 3: Cross multiply
    76,243.14x = 105,215.76 × 42,252.18
  4. Step 4: Simplify right side
    76,243.14x = 4,445,595,230.36
  5. Step 5: Solve for x
    x = 4,445,595,230.36/76,243.14
  6. Step 6: Final answer
    x = 58,308.13

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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.