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Finding the Fourth Proportional to 70,489.51, 97,266.53 and 40,276.79

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Solution

The fourth proportional to 70,489.51, 97,266.53 and 40,276.79 is: 55,576.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,489.51 : 97,266.53 = 40,276.79 : x
  2. Step 2: Convert to fraction form
    70,489.51/97,266.53 = 40,276.79/x
  3. Step 3: Cross multiply
    70,489.51x = 97,266.53 × 40,276.79
  4. Step 4: Simplify right side
    70,489.51x = 3,917,583,355.39
  5. Step 5: Solve for x
    x = 3,917,583,355.39/70,489.51
  6. Step 6: Final answer
    x = 55,576.83

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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.