Home / 75,188.04-103,762.94-42,931.39

Finding the Fourth Proportional to 75,188.04, 103,762.94 and 42,931.39

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Solution

The fourth proportional to 75,188.04, 103,762.94 and 42,931.39 is: 59,247.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,188.04 : 103,762.94 = 42,931.39 : x
  2. Step 2: Convert to fraction form
    75,188.04/103,762.94 = 42,931.39/x
  3. Step 3: Cross multiply
    75,188.04x = 103,762.94 × 42,931.39
  4. Step 4: Simplify right side
    75,188.04x = 4,454,687,244.69
  5. Step 5: Solve for x
    x = 4,454,687,244.69/75,188.04
  6. Step 6: Final answer
    x = 59,247.29

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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.