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Finding the Fourth Proportional to 56,146.84, 77,482.78 and 30,653.24

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Solution

The fourth proportional to 56,146.84, 77,482.78 and 30,653.24 is: 42,301.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,146.84 : 77,482.78 = 30,653.24 : x
  2. Step 2: Convert to fraction form
    56,146.84/77,482.78 = 30,653.24/x
  3. Step 3: Cross multiply
    56,146.84x = 77,482.78 × 30,653.24
  4. Step 4: Simplify right side
    56,146.84x = 2,375,098,251.21
  5. Step 5: Solve for x
    x = 2,375,098,251.21/56,146.84
  6. Step 6: Final answer
    x = 42,301.55

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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.