Home / 79,742.16-110,045.28-45,753.36

Finding the Fourth Proportional to 79,742.16, 110,045.28 and 45,753.36

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Solution

The fourth proportional to 79,742.16, 110,045.28 and 45,753.36 is: 63,140.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,742.16 : 110,045.28 = 45,753.36 : x
  2. Step 2: Convert to fraction form
    79,742.16/110,045.28 = 45,753.36/x
  3. Step 3: Cross multiply
    79,742.16x = 110,045.28 × 45,753.36
  4. Step 4: Simplify right side
    79,742.16x = 5,034,941,312.14
  5. Step 5: Solve for x
    x = 5,034,941,312.14/79,742.16
  6. Step 6: Final answer
    x = 63,140.27

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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.