Home / 70,242.30-105,271.52-61,335.18

Finding the Fourth Proportional to 70,242.30, 105,271.52 and 61,335.18

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Solution

The fourth proportional to 70,242.30, 105,271.52 and 61,335.18 is: 91,922.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,242.30 : 105,271.52 = 61,335.18 : x
  2. Step 2: Convert to fraction form
    70,242.30/105,271.52 = 61,335.18/x
  3. Step 3: Cross multiply
    70,242.30x = 105,271.52 × 61,335.18
  4. Step 4: Simplify right side
    70,242.30x = 6,456,847,321.40
  5. Step 5: Solve for x
    x = 6,456,847,321.40/70,242.30
  6. Step 6: Final answer
    x = 91,922.49

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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.