Home / 55,788.63-76,988.91-30,638.13

Finding the Fourth Proportional to 55,788.63, 76,988.91 and 30,638.13

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Solution

The fourth proportional to 55,788.63, 76,988.91 and 30,638.13 is: 42,280.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,788.63 : 76,988.91 = 30,638.13 : x
  2. Step 2: Convert to fraction form
    55,788.63/76,988.91 = 30,638.13/x
  3. Step 3: Cross multiply
    55,788.63x = 76,988.91 × 30,638.13
  4. Step 4: Simplify right side
    55,788.63x = 2,358,796,233.14
  5. Step 5: Solve for x
    x = 2,358,796,233.14/55,788.63
  6. Step 6: Final answer
    x = 42,280.95

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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.