Home / 55,395.12-83,085.38-15,416.76

Finding the Fourth Proportional to 55,395.12, 83,085.38 and 15,416.76

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Solution

The fourth proportional to 55,395.12, 83,085.38 and 15,416.76 is: 23,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,395.12 : 83,085.38 = 15,416.76 : x
  2. Step 2: Convert to fraction form
    55,395.12/83,085.38 = 15,416.76/x
  3. Step 3: Cross multiply
    55,395.12x = 83,085.38 × 15,416.76
  4. Step 4: Simplify right side
    55,395.12x = 1,280,906,986.08
  5. Step 5: Solve for x
    x = 1,280,906,986.08/55,395.12
  6. Step 6: Final answer
    x = 23,123.10

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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.