Home / 51,362.40-77,065.20-28,005.60

Finding the Fourth Proportional to 51,362.40, 77,065.20 and 28,005.60

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Solution

The fourth proportional to 51,362.40, 77,065.20 and 28,005.60 is: 42,020.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,362.40 : 77,065.20 = 28,005.60 : x
  2. Step 2: Convert to fraction form
    51,362.40/77,065.20 = 28,005.60/x
  3. Step 3: Cross multiply
    51,362.40x = 77,065.20 × 28,005.60
  4. Step 4: Simplify right side
    51,362.40x = 2,158,257,165.12
  5. Step 5: Solve for x
    x = 2,158,257,165.12/51,362.40
  6. Step 6: Final answer
    x = 42,020.18

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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.