Home / 55,949.39-77,211.77-30,457.40

Finding the Fourth Proportional to 55,949.39, 77,211.77 and 30,457.40

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Solution

The fourth proportional to 55,949.39, 77,211.77 and 30,457.40 is: 42,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,949.39 : 77,211.77 = 30,457.40 : x
  2. Step 2: Convert to fraction form
    55,949.39/77,211.77 = 30,457.40/x
  3. Step 3: Cross multiply
    55,949.39x = 77,211.77 × 30,457.40
  4. Step 4: Simplify right side
    55,949.39x = 2,351,669,763.60
  5. Step 5: Solve for x
    x = 2,351,669,763.60/55,949.39
  6. Step 6: Final answer
    x = 42,032.09

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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.