Home / 55,420.55-83,142.51-17,977.70

Finding the Fourth Proportional to 55,420.55, 83,142.51 and 17,977.70

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Solution

The fourth proportional to 55,420.55, 83,142.51 and 17,977.70 is: 26,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,420.55 : 83,142.51 = 17,977.70 : x
  2. Step 2: Convert to fraction form
    55,420.55/83,142.51 = 17,977.70/x
  3. Step 3: Cross multiply
    55,420.55x = 83,142.51 × 17,977.70
  4. Step 4: Simplify right side
    55,420.55x = 1,494,711,313.57
  5. Step 5: Solve for x
    x = 1,494,711,313.57/55,420.55
  6. Step 6: Final answer
    x = 26,970.34

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1.5x scale

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.