Home / 55,389.47-83,158.02-47,122.61

Finding the Fourth Proportional to 55,389.47, 83,158.02 and 47,122.61

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Solution

The fourth proportional to 55,389.47, 83,158.02 and 47,122.61 is: 70,746.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,389.47 : 83,158.02 = 47,122.61 : x
  2. Step 2: Convert to fraction form
    55,389.47/83,158.02 = 47,122.61/x
  3. Step 3: Cross multiply
    55,389.47x = 83,158.02 × 47,122.61
  4. Step 4: Simplify right side
    55,389.47x = 3,918,622,529.04
  5. Step 5: Solve for x
    x = 3,918,622,529.04/55,389.47
  6. Step 6: Final answer
    x = 70,746.71

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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.