Home / 70,351.40-97,094.18-40,129.80

Finding the Fourth Proportional to 70,351.40, 97,094.18 and 40,129.80

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Solution

The fourth proportional to 70,351.40, 97,094.18 and 40,129.80 is: 55,384.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,351.40 : 97,094.18 = 40,129.80 : x
  2. Step 2: Convert to fraction form
    70,351.40/97,094.18 = 40,129.80/x
  3. Step 3: Cross multiply
    70,351.40x = 97,094.18 × 40,129.80
  4. Step 4: Simplify right side
    70,351.40x = 3,896,370,024.56
  5. Step 5: Solve for x
    x = 3,896,370,024.56/70,351.40
  6. Step 6: Final answer
    x = 55,384.40

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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.