Home / 55,788.52-76,988.14-30,638.02

Finding the Fourth Proportional to 55,788.52, 76,988.14 and 30,638.02

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Solution

The fourth proportional to 55,788.52, 76,988.14 and 30,638.02 is: 42,280.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,788.52 : 76,988.14 = 30,638.02 : x
  2. Step 2: Convert to fraction form
    55,788.52/76,988.14 = 30,638.02/x
  3. Step 3: Cross multiply
    55,788.52x = 76,988.14 × 30,638.02
  4. Step 4: Simplify right side
    55,788.52x = 2,358,763,711.55
  5. Step 5: Solve for x
    x = 2,358,763,711.55/55,788.52
  6. Step 6: Final answer
    x = 42,280.45

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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.