Home / 55,810.08-77,021.68-30,659.84

Finding the Fourth Proportional to 55,810.08, 77,021.68 and 30,659.84

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Solution

The fourth proportional to 55,810.08, 77,021.68 and 30,659.84 is: 42,312.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.08 : 77,021.68 = 30,659.84 : x
  2. Step 2: Convert to fraction form
    55,810.08/77,021.68 = 30,659.84/x
  3. Step 3: Cross multiply
    55,810.08x = 77,021.68 × 30,659.84
  4. Step 4: Simplify right side
    55,810.08x = 2,361,472,385.33
  5. Step 5: Solve for x
    x = 2,361,472,385.33/55,810.08
  6. Step 6: Final answer
    x = 42,312.65

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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.