Home / 45,278.10-67,868.55-17,187.30

Finding the Fourth Proportional to 45,278.10, 67,868.55 and 17,187.30

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Solution

The fourth proportional to 45,278.10, 67,868.55 and 17,187.30 is: 25,762.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,278.10 : 67,868.55 = 17,187.30 : x
  2. Step 2: Convert to fraction form
    45,278.10/67,868.55 = 17,187.30/x
  3. Step 3: Cross multiply
    45,278.10x = 67,868.55 × 17,187.30
  4. Step 4: Simplify right side
    45,278.10x = 1,166,477,129.42
  5. Step 5: Solve for x
    x = 1,166,477,129.42/45,278.10
  6. Step 6: Final answer
    x = 25,762.50

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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.