Home / 61,115.03-91,685.53-18,994.10

Finding the Fourth Proportional to 61,115.03, 91,685.53 and 18,994.10

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Solution

The fourth proportional to 61,115.03, 91,685.53 and 18,994.10 is: 28,495.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,115.03 : 91,685.53 = 18,994.10 : x
  2. Step 2: Convert to fraction form
    61,115.03/91,685.53 = 18,994.10/x
  3. Step 3: Cross multiply
    61,115.03x = 91,685.53 × 18,994.10
  4. Step 4: Simplify right side
    61,115.03x = 1,741,483,717.40
  5. Step 5: Solve for x
    x = 1,741,483,717.40/61,115.03
  6. Step 6: Final answer
    x = 28,495.18

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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.