Home / 55,113.40-76,053.09-30,913.03

Finding the Fourth Proportional to 55,113.40, 76,053.09 and 30,913.03

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Solution

The fourth proportional to 55,113.40, 76,053.09 and 30,913.03 is: 42,658.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,113.40 : 76,053.09 = 30,913.03 : x
  2. Step 2: Convert to fraction form
    55,113.40/76,053.09 = 30,913.03/x
  3. Step 3: Cross multiply
    55,113.40x = 76,053.09 × 30,913.03
  4. Step 4: Simplify right side
    55,113.40x = 2,351,031,452.76
  5. Step 5: Solve for x
    x = 2,351,031,452.76/55,113.40
  6. Step 6: Final answer
    x = 42,658.07

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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.