Home / 357,053.55-535,578-90,811.76

Finding the Fourth Proportional to 357,053.55, 535,578 and 90,811.76

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Solution

The fourth proportional to 357,053.55, 535,578 and 90,811.76 is: 136,217.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,053.55 : 535,578 = 90,811.76 : x
  2. Step 2: Convert to fraction form
    357,053.55/535,578 = 90,811.76/x
  3. Step 3: Cross multiply
    357,053.55x = 535,578 × 90,811.76
  4. Step 4: Simplify right side
    357,053.55x = 48,636,778,119.39
  5. Step 5: Solve for x
    x = 48,636,778,119.39/357,053.55
  6. Step 6: Final answer
    x = 136,217.04

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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.