Home / 45,290.16-67,899.66-28,615.10

Finding the Fourth Proportional to 45,290.16, 67,899.66 and 28,615.10

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Solution

The fourth proportional to 45,290.16, 67,899.66 and 28,615.10 is: 42,900.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,290.16 : 67,899.66 = 28,615.10 : x
  2. Step 2: Convert to fraction form
    45,290.16/67,899.66 = 28,615.10/x
  3. Step 3: Cross multiply
    45,290.16x = 67,899.66 × 28,615.10
  4. Step 4: Simplify right side
    45,290.16x = 1,942,955,560.87
  5. Step 5: Solve for x
    x = 1,942,955,560.87/45,290.16
  6. Step 6: Final answer
    x = 42,900.17

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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.