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Finding the Fourth Proportional to 70,536.78, 97,340.70 and 38,707.68

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Solution

The fourth proportional to 70,536.78, 97,340.70 and 38,707.68 is: 53,416.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,536.78 : 97,340.70 = 38,707.68 : x
  2. Step 2: Convert to fraction form
    70,536.78/97,340.70 = 38,707.68/x
  3. Step 3: Cross multiply
    70,536.78x = 97,340.70 × 38,707.68
  4. Step 4: Simplify right side
    70,536.78x = 3,767,832,666.58
  5. Step 5: Solve for x
    x = 3,767,832,666.58/70,536.78
  6. Step 6: Final answer
    x = 53,416.57

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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.