Home / 75,008.48-112,457.24-45,419.36

Finding the Fourth Proportional to 75,008.48, 112,457.24 and 45,419.36

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Solution

The fourth proportional to 75,008.48, 112,457.24 and 45,419.36 is: 68,095.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,008.48 : 112,457.24 = 45,419.36 : x
  2. Step 2: Convert to fraction form
    75,008.48/112,457.24 = 45,419.36/x
  3. Step 3: Cross multiply
    75,008.48x = 112,457.24 × 45,419.36
  4. Step 4: Simplify right side
    75,008.48x = 5,107,735,868.17
  5. Step 5: Solve for x
    x = 5,107,735,868.17/75,008.48
  6. Step 6: Final answer
    x = 68,095.45

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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.