Home / 69,035.75-103,421.70-57,862.61

Finding the Fourth Proportional to 69,035.75, 103,421.70 and 57,862.61

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Solution

The fourth proportional to 69,035.75, 103,421.70 and 57,862.61 is: 86,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,035.75 : 103,421.70 = 57,862.61 : x
  2. Step 2: Convert to fraction form
    69,035.75/103,421.70 = 57,862.61/x
  3. Step 3: Cross multiply
    69,035.75x = 103,421.70 × 57,862.61
  4. Step 4: Simplify right side
    69,035.75x = 5,984,249,492.64
  5. Step 5: Solve for x
    x = 5,984,249,492.64/69,035.75
  6. Step 6: Final answer
    x = 86,683.34

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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.