Home / 103,579.38-142,943.81-58,259.48

Finding the Fourth Proportional to 103,579.38, 142,943.81 and 58,259.48

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Solution

The fourth proportional to 103,579.38, 142,943.81 and 58,259.48 is: 80,400.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,579.38 : 142,943.81 = 58,259.48 : x
  2. Step 2: Convert to fraction form
    103,579.38/142,943.81 = 58,259.48/x
  3. Step 3: Cross multiply
    103,579.38x = 142,943.81 × 58,259.48
  4. Step 4: Simplify right side
    103,579.38x = 8,327,831,033.80
  5. Step 5: Solve for x
    x = 8,327,831,033.80/103,579.38
  6. Step 6: Final answer
    x = 80,400.47

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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.