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Finding the Fourth Proportional to 70,270.90, 96,962.50 and 40,056.28

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Solution

The fourth proportional to 70,270.90, 96,962.50 and 40,056.28 is: 55,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,270.90 : 96,962.50 = 40,056.28 : x
  2. Step 2: Convert to fraction form
    70,270.90/96,962.50 = 40,056.28/x
  3. Step 3: Cross multiply
    70,270.90x = 96,962.50 × 40,056.28
  4. Step 4: Simplify right side
    70,270.90x = 3,883,957,049.50
  5. Step 5: Solve for x
    x = 3,883,957,049.50/70,270.90
  6. Step 6: Final answer
    x = 55,271.20

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1.5x scale

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.