Home / 52,742.94-72,785.28-28,869.74

Finding the Fourth Proportional to 52,742.94, 72,785.28 and 28,869.74

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Solution

The fourth proportional to 52,742.94, 72,785.28 and 28,869.74 is: 39,840.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,742.94 : 72,785.28 = 28,869.74 : x
  2. Step 2: Convert to fraction form
    52,742.94/72,785.28 = 28,869.74/x
  3. Step 3: Cross multiply
    52,742.94x = 72,785.28 × 28,869.74
  4. Step 4: Simplify right side
    52,742.94x = 2,101,291,745.50
  5. Step 5: Solve for x
    x = 2,101,291,745.50/52,742.94
  6. Step 6: Final answer
    x = 39,840.25

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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.