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Finding the Fourth Proportional to 70,548.39, 97,358.63 and 40,338.63

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Solution

The fourth proportional to 70,548.39, 97,358.63 and 40,338.63 is: 55,668.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,548.39 : 97,358.63 = 40,338.63 : x
  2. Step 2: Convert to fraction form
    70,548.39/97,358.63 = 40,338.63/x
  3. Step 3: Cross multiply
    70,548.39x = 97,358.63 × 40,338.63
  4. Step 4: Simplify right side
    70,548.39x = 3,927,313,551.18
  5. Step 5: Solve for x
    x = 3,927,313,551.18/70,548.39
  6. Step 6: Final answer
    x = 55,668.37

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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.