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Finding the Fourth Proportional to 55,973.76, 77,244.80 and 30,480.88

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Solution

The fourth proportional to 55,973.76, 77,244.80 and 30,480.88 is: 42,064.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,973.76 : 77,244.80 = 30,480.88 : x
  2. Step 2: Convert to fraction form
    55,973.76/77,244.80 = 30,480.88/x
  3. Step 3: Cross multiply
    55,973.76x = 77,244.80 × 30,480.88
  4. Step 4: Simplify right side
    55,973.76x = 2,354,489,479.42
  5. Step 5: Solve for x
    x = 2,354,489,479.42/55,973.76
  6. Step 6: Final answer
    x = 42,064.17

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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.