Home / 45,100.07-67,656.59-13,937.75

Finding the Fourth Proportional to 45,100.07, 67,656.59 and 13,937.75

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Solution

The fourth proportional to 45,100.07, 67,656.59 and 13,937.75 is: 20,908.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,100.07 : 67,656.59 = 13,937.75 : x
  2. Step 2: Convert to fraction form
    45,100.07/67,656.59 = 13,937.75/x
  3. Step 3: Cross multiply
    45,100.07x = 67,656.59 × 13,937.75
  4. Step 4: Simplify right side
    45,100.07x = 942,980,567.58
  5. Step 5: Solve for x
    x = 942,980,567.58/45,100.07
  6. Step 6: Final answer
    x = 20,908.63

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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.