Home / 45,099.45-67,655.65-13,937.13

Finding the Fourth Proportional to 45,099.45, 67,655.65 and 13,937.13

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Solution

The fourth proportional to 45,099.45, 67,655.65 and 13,937.13 is: 20,907.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,099.45 : 67,655.65 = 13,937.13 : x
  2. Step 2: Convert to fraction form
    45,099.45/67,655.65 = 13,937.13/x
  3. Step 3: Cross multiply
    45,099.45x = 67,655.65 × 13,937.13
  4. Step 4: Simplify right side
    45,099.45x = 942,925,216.16
  5. Step 5: Solve for x
    x = 942,925,216.16/45,099.45
  6. Step 6: Final answer
    x = 20,907.69

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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.