Home / 96,980.80-145,466.40-30,427.36

Finding the Fourth Proportional to 96,980.80, 145,466.40 and 30,427.36

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Solution

The fourth proportional to 96,980.80, 145,466.40 and 30,427.36 is: 45,639.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,980.80 : 145,466.40 = 30,427.36 : x
  2. Step 2: Convert to fraction form
    96,980.80/145,466.40 = 30,427.36/x
  3. Step 3: Cross multiply
    96,980.80x = 145,466.40 × 30,427.36
  4. Step 4: Simplify right side
    96,980.80x = 4,426,158,520.70
  5. Step 5: Solve for x
    x = 4,426,158,520.70/96,980.80
  6. Step 6: Final answer
    x = 45,639.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.