Home / 90,965-136,475.04-46,623.18

Finding the Fourth Proportional to 90,965, 136,475.04 and 46,623.18

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Solution

The fourth proportional to 90,965, 136,475.04 and 46,623.18 is: 69,948.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,965 : 136,475.04 = 46,623.18 : x
  2. Step 2: Convert to fraction form
    90,965/136,475.04 = 46,623.18/x
  3. Step 3: Cross multiply
    90,965x = 136,475.04 × 46,623.18
  4. Step 4: Simplify right side
    90,965x = 6,362,900,355.43
  5. Step 5: Solve for x
    x = 6,362,900,355.43/90,965
  6. Step 6: Final answer
    x = 69,948.89

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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.