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Finding the Fourth Proportional to 70,495.68, 97,290.26 and 38,670.78

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Solution

The fourth proportional to 70,495.68, 97,290.26 and 38,670.78 is: 53,369.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,495.68 : 97,290.26 = 38,670.78 : x
  2. Step 2: Convert to fraction form
    70,495.68/97,290.26 = 38,670.78/x
  3. Step 3: Cross multiply
    70,495.68x = 97,290.26 × 38,670.78
  4. Step 4: Simplify right side
    70,495.68x = 3,762,290,240.60
  5. Step 5: Solve for x
    x = 3,762,290,240.60/70,495.68
  6. Step 6: Final answer
    x = 53,369.09

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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.