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Finding the Fourth Proportional to 56,450.70, 77,900.22 and 30,955.74

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Solution

The fourth proportional to 56,450.70, 77,900.22 and 30,955.74 is: 42,717.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,450.70 : 77,900.22 = 30,955.74 : x
  2. Step 2: Convert to fraction form
    56,450.70/77,900.22 = 30,955.74/x
  3. Step 3: Cross multiply
    56,450.70x = 77,900.22 × 30,955.74
  4. Step 4: Simplify right side
    56,450.70x = 2,411,458,956.26
  5. Step 5: Solve for x
    x = 2,411,458,956.26/56,450.70
  6. Step 6: Final answer
    x = 42,717.96

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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.