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Finding the Fourth Proportional to 70,980.39, 97,948.71 and 40,770.63

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Solution

The fourth proportional to 70,980.39, 97,948.71 and 40,770.63 is: 56,261.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,980.39 : 97,948.71 = 40,770.63 : x
  2. Step 2: Convert to fraction form
    70,980.39/97,948.71 = 40,770.63/x
  3. Step 3: Cross multiply
    70,980.39x = 97,948.71 × 40,770.63
  4. Step 4: Simplify right side
    70,980.39x = 3,993,430,614.39
  5. Step 5: Solve for x
    x = 3,993,430,614.39/70,980.39
  6. Step 6: Final answer
    x = 56,261.04

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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.