Home / 70,281.12-96,990.26-40,065.89

Finding the Fourth Proportional to 70,281.12, 96,990.26 and 40,065.89

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Solution

The fourth proportional to 70,281.12, 96,990.26 and 40,065.89 is: 55,292.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,281.12 : 96,990.26 = 40,065.89 : x
  2. Step 2: Convert to fraction form
    70,281.12/96,990.26 = 40,065.89/x
  3. Step 3: Cross multiply
    70,281.12x = 96,990.26 × 40,065.89
  4. Step 4: Simplify right side
    70,281.12x = 3,886,001,173.89
  5. Step 5: Solve for x
    x = 3,886,001,173.89/70,281.12
  6. Step 6: Final answer
    x = 55,292.25

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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.