Home / 75,712.24-104,439.54-47,368.72

Finding the Fourth Proportional to 75,712.24, 104,439.54 and 47,368.72

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Solution

The fourth proportional to 75,712.24, 104,439.54 and 47,368.72 is: 65,341.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,712.24 : 104,439.54 = 47,368.72 : x
  2. Step 2: Convert to fraction form
    75,712.24/104,439.54 = 47,368.72/x
  3. Step 3: Cross multiply
    75,712.24x = 104,439.54 × 47,368.72
  4. Step 4: Simplify right side
    75,712.24x = 4,947,167,327.19
  5. Step 5: Solve for x
    x = 4,947,167,327.19/75,712.24
  6. Step 6: Final answer
    x = 65,341.71

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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.