Home / 289,377.24-434,088.30-86,957.54

Finding the Fourth Proportional to 289,377.24, 434,088.30 and 86,957.54

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Solution

The fourth proportional to 289,377.24, 434,088.30 and 86,957.54 is: 130,443.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,377.24 : 434,088.30 = 86,957.54 : x
  2. Step 2: Convert to fraction form
    289,377.24/434,088.30 = 86,957.54/x
  3. Step 3: Cross multiply
    289,377.24x = 434,088.30 × 86,957.54
  4. Step 4: Simplify right side
    289,377.24x = 37,747,250,710.78
  5. Step 5: Solve for x
    x = 37,747,250,710.78/289,377.24
  6. Step 6: Final answer
    x = 130,443.05

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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.