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Finding the Fourth Proportional to 96,478.84, 133,141.20 and 56,220.22

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Solution

The fourth proportional to 96,478.84, 133,141.20 and 56,220.22 is: 77,584.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,478.84 : 133,141.20 = 56,220.22 : x
  2. Step 2: Convert to fraction form
    96,478.84/133,141.20 = 56,220.22/x
  3. Step 3: Cross multiply
    96,478.84x = 133,141.20 × 56,220.22
  4. Step 4: Simplify right side
    96,478.84x = 7,485,227,555.06
  5. Step 5: Solve for x
    x = 7,485,227,555.06/96,478.84
  6. Step 6: Final answer
    x = 77,584.14

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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.