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Finding the Fourth Proportional to 70,421.77, 97,182.11 and 38,590.74

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Solution

The fourth proportional to 70,421.77, 97,182.11 and 38,590.74 is: 53,255.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,421.77 : 97,182.11 = 38,590.74 : x
  2. Step 2: Convert to fraction form
    70,421.77/97,182.11 = 38,590.74/x
  3. Step 3: Cross multiply
    70,421.77x = 97,182.11 × 38,590.74
  4. Step 4: Simplify right side
    70,421.77x = 3,750,329,636.14
  5. Step 5: Solve for x
    x = 3,750,329,636.14/70,421.77
  6. Step 6: Final answer
    x = 53,255.26

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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.