Home / 70,086.75-105,140.25-22,686.36

Finding the Fourth Proportional to 70,086.75, 105,140.25 and 22,686.36

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Solution

The fourth proportional to 70,086.75, 105,140.25 and 22,686.36 is: 34,032.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,086.75 : 105,140.25 = 22,686.36 : x
  2. Step 2: Convert to fraction form
    70,086.75/105,140.25 = 22,686.36/x
  3. Step 3: Cross multiply
    70,086.75x = 105,140.25 × 22,686.36
  4. Step 4: Simplify right side
    70,086.75x = 2,385,249,561.99
  5. Step 5: Solve for x
    x = 2,385,249,561.99/70,086.75
  6. Step 6: Final answer
    x = 34,032.82

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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.