Home / 90,998.10-136,501.20-31,025.70

Finding the Fourth Proportional to 90,998.10, 136,501.20 and 31,025.70

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Solution

The fourth proportional to 90,998.10, 136,501.20 and 31,025.70 is: 46,539.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,998.10 : 136,501.20 = 31,025.70 : x
  2. Step 2: Convert to fraction form
    90,998.10/136,501.20 = 31,025.70/x
  3. Step 3: Cross multiply
    90,998.10x = 136,501.20 × 31,025.70
  4. Step 4: Simplify right side
    90,998.10x = 4,235,045,280.84
  5. Step 5: Solve for x
    x = 4,235,045,280.84/90,998.10
  6. Step 6: Final answer
    x = 46,539.93

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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.