Home / 40,856.19-61,253.13-21,122.16

Finding the Fourth Proportional to 40,856.19, 61,253.13 and 21,122.16

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Solution

The fourth proportional to 40,856.19, 61,253.13 and 21,122.16 is: 31,667.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,856.19 : 61,253.13 = 21,122.16 : x
  2. Step 2: Convert to fraction form
    40,856.19/61,253.13 = 21,122.16/x
  3. Step 3: Cross multiply
    40,856.19x = 61,253.13 × 21,122.16
  4. Step 4: Simplify right side
    40,856.19x = 1,293,798,412.36
  5. Step 5: Solve for x
    x = 1,293,798,412.36/40,856.19
  6. Step 6: Final answer
    x = 31,667.13

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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.