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Finding the Fourth Proportional to 70,499.58, 97,294.55 and 40,284.21

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Solution

The fourth proportional to 70,499.58, 97,294.55 and 40,284.21 is: 55,595.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,499.58 : 97,294.55 = 40,284.21 : x
  2. Step 2: Convert to fraction form
    70,499.58/97,294.55 = 40,284.21/x
  3. Step 3: Cross multiply
    70,499.58x = 97,294.55 × 40,284.21
  4. Step 4: Simplify right side
    70,499.58x = 3,919,433,882.63
  5. Step 5: Solve for x
    x = 3,919,433,882.63/70,499.58
  6. Step 6: Final answer
    x = 55,595.14

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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.