Home / 75,008.34-103,429.04-48,140.64

Finding the Fourth Proportional to 75,008.34, 103,429.04 and 48,140.64

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Solution

The fourth proportional to 75,008.34, 103,429.04 and 48,140.64 is: 66,381.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,008.34 : 103,429.04 = 48,140.64 : x
  2. Step 2: Convert to fraction form
    75,008.34/103,429.04 = 48,140.64/x
  3. Step 3: Cross multiply
    75,008.34x = 103,429.04 × 48,140.64
  4. Step 4: Simplify right side
    75,008.34x = 4,979,139,939.48
  5. Step 5: Solve for x
    x = 4,979,139,939.48/75,008.34
  6. Step 6: Final answer
    x = 66,381.15

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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.