Home / 79,741.13-110,038.50-45,742.59

Finding the Fourth Proportional to 79,741.13, 110,038.50 and 45,742.59

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Solution

The fourth proportional to 79,741.13, 110,038.50 and 45,742.59 is: 63,122.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,741.13 : 110,038.50 = 45,742.59 : x
  2. Step 2: Convert to fraction form
    79,741.13/110,038.50 = 45,742.59/x
  3. Step 3: Cross multiply
    79,741.13x = 110,038.50 × 45,742.59
  4. Step 4: Simplify right side
    79,741.13x = 5,033,445,989.72
  5. Step 5: Solve for x
    x = 5,033,445,989.72/79,741.13
  6. Step 6: Final answer
    x = 63,122.33

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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.