Home / 65,541.15-90,384.39-42,873.03

Finding the Fourth Proportional to 65,541.15, 90,384.39 and 42,873.03

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Solution

The fourth proportional to 65,541.15, 90,384.39 and 42,873.03 is: 59,123.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,541.15 : 90,384.39 = 42,873.03 : x
  2. Step 2: Convert to fraction form
    65,541.15/90,384.39 = 42,873.03/x
  3. Step 3: Cross multiply
    65,541.15x = 90,384.39 × 42,873.03
  4. Step 4: Simplify right side
    65,541.15x = 3,875,052,664.00
  5. Step 5: Solve for x
    x = 3,875,052,664.00/65,541.15
  6. Step 6: Final answer
    x = 59,123.97

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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.