Home / 45,265-67,899.33-21,560.35

Finding the Fourth Proportional to 45,265, 67,899.33 and 21,560.35

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Solution

The fourth proportional to 45,265, 67,899.33 and 21,560.35 is: 32,341.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,265 : 67,899.33 = 21,560.35 : x
  2. Step 2: Convert to fraction form
    45,265/67,899.33 = 21,560.35/x
  3. Step 3: Cross multiply
    45,265x = 67,899.33 × 21,560.35
  4. Step 4: Simplify right side
    45,265x = 1,463,933,319.57
  5. Step 5: Solve for x
    x = 1,463,933,319.57/45,265
  6. Step 6: Final answer
    x = 32,341.40

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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.