Home / 45,089.75-67,643.86-15,503.74

Finding the Fourth Proportional to 45,089.75, 67,643.86 and 15,503.74

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Solution

The fourth proportional to 45,089.75, 67,643.86 and 15,503.74 is: 23,258.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,089.75 : 67,643.86 = 15,503.74 : x
  2. Step 2: Convert to fraction form
    45,089.75/67,643.86 = 15,503.74/x
  3. Step 3: Cross multiply
    45,089.75x = 67,643.86 × 15,503.74
  4. Step 4: Simplify right side
    45,089.75x = 1,048,732,909.63
  5. Step 5: Solve for x
    x = 1,048,732,909.63/45,089.75
  6. Step 6: Final answer
    x = 23,258.79

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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.