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Finding the Fourth Proportional to 70,392.90, 97,143.93 and 38,561.82

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Solution

The fourth proportional to 70,392.90, 97,143.93 and 38,561.82 is: 53,216.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,392.90 : 97,143.93 = 38,561.82 : x
  2. Step 2: Convert to fraction form
    70,392.90/97,143.93 = 38,561.82/x
  3. Step 3: Cross multiply
    70,392.90x = 97,143.93 × 38,561.82
  4. Step 4: Simplify right side
    70,392.90x = 3,746,046,742.75
  5. Step 5: Solve for x
    x = 3,746,046,742.75/70,392.90
  6. Step 6: Final answer
    x = 53,216.26

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.