Home / 75,430.96-113,194.16-42,172.84

Finding the Fourth Proportional to 75,430.96, 113,194.16 and 42,172.84

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Solution

The fourth proportional to 75,430.96, 113,194.16 and 42,172.84 is: 63,285.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,430.96 : 113,194.16 = 42,172.84 : x
  2. Step 2: Convert to fraction form
    75,430.96/113,194.16 = 42,172.84/x
  3. Step 3: Cross multiply
    75,430.96x = 113,194.16 × 42,172.84
  4. Step 4: Simplify right side
    75,430.96x = 4,773,719,198.61
  5. Step 5: Solve for x
    x = 4,773,719,198.61/75,430.96
  6. Step 6: Final answer
    x = 63,285.94

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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.