Home / 86,567.40-129,868.65-49,145.40

Finding the Fourth Proportional to 86,567.40, 129,868.65 and 49,145.40

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Solution

The fourth proportional to 86,567.40, 129,868.65 and 49,145.40 is: 73,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,567.40 : 129,868.65 = 49,145.40 : x
  2. Step 2: Convert to fraction form
    86,567.40/129,868.65 = 49,145.40/x
  3. Step 3: Cross multiply
    86,567.40x = 129,868.65 × 49,145.40
  4. Step 4: Simplify right side
    86,567.40x = 6,382,446,751.71
  5. Step 5: Solve for x
    x = 6,382,446,751.71/86,567.40
  6. Step 6: Final answer
    x = 73,728.06

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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.