Home / 75,271.81-112,907.77-19,116.13

Finding the Fourth Proportional to 75,271.81, 112,907.77 and 19,116.13

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Solution

The fourth proportional to 75,271.81, 112,907.77 and 19,116.13 is: 28,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,271.81 : 112,907.77 = 19,116.13 : x
  2. Step 2: Convert to fraction form
    75,271.81/112,907.77 = 19,116.13/x
  3. Step 3: Cross multiply
    75,271.81x = 112,907.77 × 19,116.13
  4. Step 4: Simplify right side
    75,271.81x = 2,158,359,609.33
  5. Step 5: Solve for x
    x = 2,158,359,609.33/75,271.81
  6. Step 6: Final answer
    x = 28,674.21

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1.5x scale

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.