Home / 75,242.90-113,004.81-66,240.20

Finding the Fourth Proportional to 75,242.90, 113,004.81 and 66,240.20

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Solution

The fourth proportional to 75,242.90, 113,004.81 and 66,240.20 is: 99,483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,242.90 : 113,004.81 = 66,240.20 : x
  2. Step 2: Convert to fraction form
    75,242.90/113,004.81 = 66,240.20/x
  3. Step 3: Cross multiply
    75,242.90x = 113,004.81 × 66,240.20
  4. Step 4: Simplify right side
    75,242.90x = 7,485,460,650.34
  5. Step 5: Solve for x
    x = 7,485,460,650.34/75,242.90
  6. Step 6: Final answer
    x = 99,483.95

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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.