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Finding the Fourth Proportional to 71,400.51, 98,533.53 and 39,569.94

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Solution

The fourth proportional to 71,400.51, 98,533.53 and 39,569.94 is: 54,606.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,400.51 : 98,533.53 = 39,569.94 : x
  2. Step 2: Convert to fraction form
    71,400.51/98,533.53 = 39,569.94/x
  3. Step 3: Cross multiply
    71,400.51x = 98,533.53 × 39,569.94
  4. Step 4: Simplify right side
    71,400.51x = 3,898,965,870.09
  5. Step 5: Solve for x
    x = 3,898,965,870.09/71,400.51
  6. Step 6: Final answer
    x = 54,606.98

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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.