Home / 90,865.02-136,313.82-30,899.10

Finding the Fourth Proportional to 90,865.02, 136,313.82 and 30,899.10

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Solution

The fourth proportional to 90,865.02, 136,313.82 and 30,899.10 is: 46,354.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,865.02 : 136,313.82 = 30,899.10 : x
  2. Step 2: Convert to fraction form
    90,865.02/136,313.82 = 30,899.10/x
  3. Step 3: Cross multiply
    90,865.02x = 136,313.82 × 30,899.10
  4. Step 4: Simplify right side
    90,865.02x = 4,211,974,355.56
  5. Step 5: Solve for x
    x = 4,211,974,355.56/90,865.02
  6. Step 6: Final answer
    x = 46,354.19

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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.