Home / 55,949.90-77,210.66-30,799.40

Finding the Fourth Proportional to 55,949.90, 77,210.66 and 30,799.40

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Solution

The fourth proportional to 55,949.90, 77,210.66 and 30,799.40 is: 42,503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,949.90 : 77,210.66 = 30,799.40 : x
  2. Step 2: Convert to fraction form
    55,949.90/77,210.66 = 30,799.40/x
  3. Step 3: Cross multiply
    55,949.90x = 77,210.66 × 30,799.40
  4. Step 4: Simplify right side
    55,949.90x = 2,378,042,001.60
  5. Step 5: Solve for x
    x = 2,378,042,001.60/55,949.90
  6. Step 6: Final answer
    x = 42,503.06

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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.