Home / 89,578.48-134,419.64-45,208.70

Finding the Fourth Proportional to 89,578.48, 134,419.64 and 45,208.70

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Solution

The fourth proportional to 89,578.48, 134,419.64 and 45,208.70 is: 67,839.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,578.48 : 134,419.64 = 45,208.70 : x
  2. Step 2: Convert to fraction form
    89,578.48/134,419.64 = 45,208.70/x
  3. Step 3: Cross multiply
    89,578.48x = 134,419.64 × 45,208.70
  4. Step 4: Simplify right side
    89,578.48x = 6,076,937,178.87
  5. Step 5: Solve for x
    x = 6,076,937,178.87/89,578.48
  6. Step 6: Final answer
    x = 67,839.25

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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.