Home / 45,030.81-67,546.11-42,290.56

Finding the Fourth Proportional to 45,030.81, 67,546.11 and 42,290.56

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Solution

The fourth proportional to 45,030.81, 67,546.11 and 42,290.56 is: 63,435.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,030.81 : 67,546.11 = 42,290.56 : x
  2. Step 2: Convert to fraction form
    45,030.81/67,546.11 = 42,290.56/x
  3. Step 3: Cross multiply
    45,030.81x = 67,546.11 × 42,290.56
  4. Step 4: Simplify right side
    45,030.81x = 2,856,563,060.74
  5. Step 5: Solve for x
    x = 2,856,563,060.74/45,030.81
  6. Step 6: Final answer
    x = 63,435.75

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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.