Home / 357,020.50-535,532.73-90,781.21

Finding the Fourth Proportional to 357,020.50, 535,532.73 and 90,781.21

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Solution

The fourth proportional to 357,020.50, 535,532.73 and 90,781.21 is: 136,172.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,020.50 : 535,532.73 = 90,781.21 : x
  2. Step 2: Convert to fraction form
    357,020.50/535,532.73 = 90,781.21/x
  3. Step 3: Cross multiply
    357,020.50x = 535,532.73 × 90,781.21
  4. Step 4: Simplify right side
    357,020.50x = 48,616,309,224.00
  5. Step 5: Solve for x
    x = 48,616,309,224.00/357,020.50
  6. Step 6: Final answer
    x = 136,172.32

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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.