Home / 62,869.34-86,744.44-39,890.76

Finding the Fourth Proportional to 62,869.34, 86,744.44 and 39,890.76

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Solution

The fourth proportional to 62,869.34, 86,744.44 and 39,890.76 is: 55,039.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,869.34 : 86,744.44 = 39,890.76 : x
  2. Step 2: Convert to fraction form
    62,869.34/86,744.44 = 39,890.76/x
  3. Step 3: Cross multiply
    62,869.34x = 86,744.44 × 39,890.76
  4. Step 4: Simplify right side
    62,869.34x = 3,460,301,637.37
  5. Step 5: Solve for x
    x = 3,460,301,637.37/62,869.34
  6. Step 6: Final answer
    x = 55,039.57

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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.