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Finding the Fourth Proportional to 64,898.81, 89,600.90 and 49,762.39

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Solution

The fourth proportional to 64,898.81, 89,600.90 and 49,762.39 is: 68,703.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,898.81 : 89,600.90 = 49,762.39 : x
  2. Step 2: Convert to fraction form
    64,898.81/89,600.90 = 49,762.39/x
  3. Step 3: Cross multiply
    64,898.81x = 89,600.90 × 49,762.39
  4. Step 4: Simplify right side
    64,898.81x = 4,458,754,457.34
  5. Step 5: Solve for x
    x = 4,458,754,457.34/64,898.81
  6. Step 6: Final answer
    x = 68,703.18

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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.