Home / 75,625.60-113,438.40-40,547.20

Finding the Fourth Proportional to 75,625.60, 113,438.40 and 40,547.20

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Solution

The fourth proportional to 75,625.60, 113,438.40 and 40,547.20 is: 60,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,625.60 : 113,438.40 = 40,547.20 : x
  2. Step 2: Convert to fraction form
    75,625.60/113,438.40 = 40,547.20/x
  3. Step 3: Cross multiply
    75,625.60x = 113,438.40 × 40,547.20
  4. Step 4: Simplify right side
    75,625.60x = 4,599,609,492.48
  5. Step 5: Solve for x
    x = 4,599,609,492.48/75,625.60
  6. Step 6: Final answer
    x = 60,820.80

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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.