Home / 45,526.45-68,311.32-20,574.13

Finding the Fourth Proportional to 45,526.45, 68,311.32 and 20,574.13

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Solution

The fourth proportional to 45,526.45, 68,311.32 and 20,574.13 is: 30,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,526.45 : 68,311.32 = 20,574.13 : x
  2. Step 2: Convert to fraction form
    45,526.45/68,311.32 = 20,574.13/x
  3. Step 3: Cross multiply
    45,526.45x = 68,311.32 × 20,574.13
  4. Step 4: Simplify right side
    45,526.45x = 1,405,445,978.15
  5. Step 5: Solve for x
    x = 1,405,445,978.15/45,526.45
  6. Step 6: Final answer
    x = 30,870.98

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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.