Home / 70,940.16-97,898.18-39,110.20

Finding the Fourth Proportional to 70,940.16, 97,898.18 and 39,110.20

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Solution

The fourth proportional to 70,940.16, 97,898.18 and 39,110.20 is: 53,972.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,940.16 : 97,898.18 = 39,110.20 : x
  2. Step 2: Convert to fraction form
    70,940.16/97,898.18 = 39,110.20/x
  3. Step 3: Cross multiply
    70,940.16x = 97,898.18 × 39,110.20
  4. Step 4: Simplify right side
    70,940.16x = 3,828,817,399.44
  5. Step 5: Solve for x
    x = 3,828,817,399.44/70,940.16
  6. Step 6: Final answer
    x = 53,972.49

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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.