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Finding the Fourth Proportional to 55,904.76, 77,148.54 and 30,754.08

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Solution

The fourth proportional to 55,904.76, 77,148.54 and 30,754.08 is: 42,440.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,904.76 : 77,148.54 = 30,754.08 : x
  2. Step 2: Convert to fraction form
    55,904.76/77,148.54 = 30,754.08/x
  3. Step 3: Cross multiply
    55,904.76x = 77,148.54 × 30,754.08
  4. Step 4: Simplify right side
    55,904.76x = 2,372,632,371.04
  5. Step 5: Solve for x
    x = 2,372,632,371.04/55,904.76
  6. Step 6: Final answer
    x = 42,440.61

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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.