Home / 58,719.64-80,921.23-57,640.01

Finding the Fourth Proportional to 58,719.64, 80,921.23 and 57,640.01

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Solution

The fourth proportional to 58,719.64, 80,921.23 and 57,640.01 is: 79,433.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,719.64 : 80,921.23 = 57,640.01 : x
  2. Step 2: Convert to fraction form
    58,719.64/80,921.23 = 57,640.01/x
  3. Step 3: Cross multiply
    58,719.64x = 80,921.23 × 57,640.01
  4. Step 4: Simplify right side
    58,719.64x = 4,664,300,506.41
  5. Step 5: Solve for x
    x = 4,664,300,506.41/58,719.64
  6. Step 6: Final answer
    x = 79,433.40

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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.