Home / 45,130.47-67,734.59-21,776.55

Finding the Fourth Proportional to 45,130.47, 67,734.59 and 21,776.55

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Solution

The fourth proportional to 45,130.47, 67,734.59 and 21,776.55 is: 32,683.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,130.47 : 67,734.59 = 21,776.55 : x
  2. Step 2: Convert to fraction form
    45,130.47/67,734.59 = 21,776.55/x
  3. Step 3: Cross multiply
    45,130.47x = 67,734.59 × 21,776.55
  4. Step 4: Simplify right side
    45,130.47x = 1,475,025,576.98
  5. Step 5: Solve for x
    x = 1,475,025,576.98/45,130.47
  6. Step 6: Final answer
    x = 32,683.59

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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.