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Finding the Fourth Proportional to 70,802.26, 97,706.89 and 38,971.18

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Solution

The fourth proportional to 70,802.26, 97,706.89 and 38,971.18 is: 53,780.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,802.26 : 97,706.89 = 38,971.18 : x
  2. Step 2: Convert to fraction form
    70,802.26/97,706.89 = 38,971.18/x
  3. Step 3: Cross multiply
    70,802.26x = 97,706.89 × 38,971.18
  4. Step 4: Simplify right side
    70,802.26x = 3,807,752,797.43
  5. Step 5: Solve for x
    x = 3,807,752,797.43/70,802.26
  6. Step 6: Final answer
    x = 53,780.10

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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.