Home / 51,071.12-70,449.37-30,647.90

Finding the Fourth Proportional to 51,071.12, 70,449.37 and 30,647.90

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Solution

The fourth proportional to 51,071.12, 70,449.37 and 30,647.90 is: 42,276.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,071.12 : 70,449.37 = 30,647.90 : x
  2. Step 2: Convert to fraction form
    51,071.12/70,449.37 = 30,647.90/x
  3. Step 3: Cross multiply
    51,071.12x = 70,449.37 × 30,647.90
  4. Step 4: Simplify right side
    51,071.12x = 2,159,125,246.82
  5. Step 5: Solve for x
    x = 2,159,125,246.82/51,071.12
  6. Step 6: Final answer
    x = 42,276.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.