Home / 52,119.10-71,928-29,460.21

Finding the Fourth Proportional to 52,119.10, 71,928 and 29,460.21

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Solution

The fourth proportional to 52,119.10, 71,928 and 29,460.21 is: 40,657.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,119.10 : 71,928 = 29,460.21 : x
  2. Step 2: Convert to fraction form
    52,119.10/71,928 = 29,460.21/x
  3. Step 3: Cross multiply
    52,119.10x = 71,928 × 29,460.21
  4. Step 4: Simplify right side
    52,119.10x = 2,119,013,715.15
  5. Step 5: Solve for x
    x = 2,119,013,715.15/52,119.10
  6. Step 6: Final answer
    x = 40,657.15

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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.