Home / 64,205.80-96,308.70-40,586.20

Finding the Fourth Proportional to 64,205.80, 96,308.70 and 40,586.20

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Solution

The fourth proportional to 64,205.80, 96,308.70 and 40,586.20 is: 60,879.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,205.80 : 96,308.70 = 40,586.20 : x
  2. Step 2: Convert to fraction form
    64,205.80/96,308.70 = 40,586.20/x
  3. Step 3: Cross multiply
    64,205.80x = 96,308.70 × 40,586.20
  4. Step 4: Simplify right side
    64,205.80x = 3,908,804,159.94
  5. Step 5: Solve for x
    x = 3,908,804,159.94/64,205.80
  6. Step 6: Final answer
    x = 60,879.30

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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.