Home / 39,886.76-59,764.53-31,619.90

Finding the Fourth Proportional to 39,886.76, 59,764.53 and 31,619.90

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Solution

The fourth proportional to 39,886.76, 59,764.53 and 31,619.90 is: 47,377.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,886.76 : 59,764.53 = 31,619.90 : x
  2. Step 2: Convert to fraction form
    39,886.76/59,764.53 = 31,619.90/x
  3. Step 3: Cross multiply
    39,886.76x = 59,764.53 × 31,619.90
  4. Step 4: Simplify right side
    39,886.76x = 1,889,748,462.15
  5. Step 5: Solve for x
    x = 1,889,748,462.15/39,886.76
  6. Step 6: Final answer
    x = 47,377.84

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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.