Home / 42,749.53-64,125.38-20,254.93

Finding the Fourth Proportional to 42,749.53, 64,125.38 and 20,254.93

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Solution

The fourth proportional to 42,749.53, 64,125.38 and 20,254.93 is: 30,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,749.53 : 64,125.38 = 20,254.93 : x
  2. Step 2: Convert to fraction form
    42,749.53/64,125.38 = 20,254.93/x
  3. Step 3: Cross multiply
    42,749.53x = 64,125.38 × 20,254.93
  4. Step 4: Simplify right side
    42,749.53x = 1,298,854,973.45
  5. Step 5: Solve for x
    x = 1,298,854,973.45/42,749.53
  6. Step 6: Final answer
    x = 30,382.91

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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.