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Finding the Fourth Proportional to 70,372.48, 97,113 and 38,541.28

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Solution

The fourth proportional to 70,372.48, 97,113 and 38,541.28 is: 53,186.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,372.48 : 97,113 = 38,541.28 : x
  2. Step 2: Convert to fraction form
    70,372.48/97,113 = 38,541.28/x
  3. Step 3: Cross multiply
    70,372.48x = 97,113 × 38,541.28
  4. Step 4: Simplify right side
    70,372.48x = 3,742,859,324.64
  5. Step 5: Solve for x
    x = 3,742,859,324.64/70,372.48
  6. Step 6: Final answer
    x = 53,186.41

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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.