Home / 70,738.84-97,590.80-40,105.48

Finding the Fourth Proportional to 70,738.84, 97,590.80 and 40,105.48

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Solution

The fourth proportional to 70,738.84, 97,590.80 and 40,105.48 is: 55,329.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,738.84 : 97,590.80 = 40,105.48 : x
  2. Step 2: Convert to fraction form
    70,738.84/97,590.80 = 40,105.48/x
  3. Step 3: Cross multiply
    70,738.84x = 97,590.80 × 40,105.48
  4. Step 4: Simplify right side
    70,738.84x = 3,913,925,930.95
  5. Step 5: Solve for x
    x = 3,913,925,930.95/70,738.84
  6. Step 6: Final answer
    x = 55,329.23

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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.