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Finding the Fourth Proportional to 70,374.56, 97,113.28 and 38,537.30

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Solution

The fourth proportional to 70,374.56, 97,113.28 and 38,537.30 is: 53,179.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,374.56 : 97,113.28 = 38,537.30 : x
  2. Step 2: Convert to fraction form
    70,374.56/97,113.28 = 38,537.30/x
  3. Step 3: Cross multiply
    70,374.56x = 97,113.28 × 38,537.30
  4. Step 4: Simplify right side
    70,374.56x = 3,742,483,605.34
  5. Step 5: Solve for x
    x = 3,742,483,605.34/70,374.56
  6. Step 6: Final answer
    x = 53,179.50

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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.