Home / 62,421.23-86,215.19-42,243.12

Finding the Fourth Proportional to 62,421.23, 86,215.19 and 42,243.12

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Solution

The fourth proportional to 62,421.23, 86,215.19 and 42,243.12 is: 58,345.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,421.23 : 86,215.19 = 42,243.12 : x
  2. Step 2: Convert to fraction form
    62,421.23/86,215.19 = 42,243.12/x
  3. Step 3: Cross multiply
    62,421.23x = 86,215.19 × 42,243.12
  4. Step 4: Simplify right side
    62,421.23x = 3,641,998,405.78
  5. Step 5: Solve for x
    x = 3,641,998,405.78/62,421.23
  6. Step 6: Final answer
    x = 58,345.51

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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.