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Finding the Fourth Proportional to 70,500.65, 97,290.36 and 38,669.32

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Solution

The fourth proportional to 70,500.65, 97,290.36 and 38,669.32 is: 53,363.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,500.65 : 97,290.36 = 38,669.32 : x
  2. Step 2: Convert to fraction form
    70,500.65/97,290.36 = 38,669.32/x
  3. Step 3: Cross multiply
    70,500.65x = 97,290.36 × 38,669.32
  4. Step 4: Simplify right side
    70,500.65x = 3,762,151,383.96
  5. Step 5: Solve for x
    x = 3,762,151,383.96/70,500.65
  6. Step 6: Final answer
    x = 53,363.36

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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.