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Finding the Fourth Proportional to 70,608.13, 97,440.90 and 38,777.71

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Solution

The fourth proportional to 70,608.13, 97,440.90 and 38,777.71 is: 53,514.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,608.13 : 97,440.90 = 38,777.71 : x
  2. Step 2: Convert to fraction form
    70,608.13/97,440.90 = 38,777.71/x
  3. Step 3: Cross multiply
    70,608.13x = 97,440.90 × 38,777.71
  4. Step 4: Simplify right side
    70,608.13x = 3,778,534,962.34
  5. Step 5: Solve for x
    x = 3,778,534,962.34/70,608.13
  6. Step 6: Final answer
    x = 53,514.16

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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.