Home / 70,845.39-97,769.66-40,639.23

Finding the Fourth Proportional to 70,845.39, 97,769.66 and 40,639.23

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Solution

The fourth proportional to 70,845.39, 97,769.66 and 40,639.23 is: 56,083.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,845.39 : 97,769.66 = 40,639.23 : x
  2. Step 2: Convert to fraction form
    70,845.39/97,769.66 = 40,639.23/x
  3. Step 3: Cross multiply
    70,845.39x = 97,769.66 × 40,639.23
  4. Step 4: Simplify right side
    70,845.39x = 3,973,283,699.76
  5. Step 5: Solve for x
    x = 3,973,283,699.76/70,845.39
  6. Step 6: Final answer
    x = 56,083.87

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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.