Home / 56,828.79-78,429.47-38,982.87

Finding the Fourth Proportional to 56,828.79, 78,429.47 and 38,982.87

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Solution

The fourth proportional to 56,828.79, 78,429.47 and 38,982.87 is: 53,800.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,828.79 : 78,429.47 = 38,982.87 : x
  2. Step 2: Convert to fraction form
    56,828.79/78,429.47 = 38,982.87/x
  3. Step 3: Cross multiply
    56,828.79x = 78,429.47 × 38,982.87
  4. Step 4: Simplify right side
    56,828.79x = 3,057,405,638.26
  5. Step 5: Solve for x
    x = 3,057,405,638.26/56,828.79
  6. Step 6: Final answer
    x = 53,800.29

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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.