Home / 43,478.40-65,254.80-43,151.12

Finding the Fourth Proportional to 43,478.40, 65,254.80 and 43,151.12

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Solution

The fourth proportional to 43,478.40, 65,254.80 and 43,151.12 is: 64,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,478.40 : 65,254.80 = 43,151.12 : x
  2. Step 2: Convert to fraction form
    43,478.40/65,254.80 = 43,151.12/x
  3. Step 3: Cross multiply
    43,478.40x = 65,254.80 × 43,151.12
  4. Step 4: Simplify right side
    43,478.40x = 2,815,817,705.38
  5. Step 5: Solve for x
    x = 2,815,817,705.38/43,478.40
  6. Step 6: Final answer
    x = 64,763.60

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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.