Home / 55,609.49-76,775.95-42,838.62

Finding the Fourth Proportional to 55,609.49, 76,775.95 and 42,838.62

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Solution

The fourth proportional to 55,609.49, 76,775.95 and 42,838.62 is: 59,144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,609.49 : 76,775.95 = 42,838.62 : x
  2. Step 2: Convert to fraction form
    55,609.49/76,775.95 = 42,838.62/x
  3. Step 3: Cross multiply
    55,609.49x = 76,775.95 × 42,838.62
  4. Step 4: Simplify right side
    55,609.49x = 3,288,975,747.19
  5. Step 5: Solve for x
    x = 3,288,975,747.19/55,609.49
  6. Step 6: Final answer
    x = 59,144.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.