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Finding the Fourth Proportional to 71,775.36, 98,902.08 and 70,807.68

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Solution

The fourth proportional to 71,775.36, 98,902.08 and 70,807.68 is: 97,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,775.36 : 98,902.08 = 70,807.68 : x
  2. Step 2: Convert to fraction form
    71,775.36/98,902.08 = 70,807.68/x
  3. Step 3: Cross multiply
    71,775.36x = 98,902.08 × 70,807.68
  4. Step 4: Simplify right side
    71,775.36x = 7,003,026,831.97
  5. Step 5: Solve for x
    x = 7,003,026,831.97/71,775.36
  6. Step 6: Final answer
    x = 97,568.68

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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.