Home / 75,547.60-113,408.70-40,555.60

Finding the Fourth Proportional to 75,547.60, 113,408.70 and 40,555.60

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Solution

The fourth proportional to 75,547.60, 113,408.70 and 40,555.60 is: 60,880.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,547.60 : 113,408.70 = 40,555.60 : x
  2. Step 2: Convert to fraction form
    75,547.60/113,408.70 = 40,555.60/x
  3. Step 3: Cross multiply
    75,547.60x = 113,408.70 × 40,555.60
  4. Step 4: Simplify right side
    75,547.60x = 4,599,357,873.72
  5. Step 5: Solve for x
    x = 4,599,357,873.72/75,547.60
  6. Step 6: Final answer
    x = 60,880.26

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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.