Home / 47,772.09-65,931.71-28,909.53

Finding the Fourth Proportional to 47,772.09, 65,931.71 and 28,909.53

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Solution

The fourth proportional to 47,772.09, 65,931.71 and 28,909.53 is: 39,898.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,772.09 : 65,931.71 = 28,909.53 : x
  2. Step 2: Convert to fraction form
    47,772.09/65,931.71 = 28,909.53/x
  3. Step 3: Cross multiply
    47,772.09x = 65,931.71 × 28,909.53
  4. Step 4: Simplify right side
    47,772.09x = 1,906,054,603.65
  5. Step 5: Solve for x
    x = 1,906,054,603.65/47,772.09
  6. Step 6: Final answer
    x = 39,898.92

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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.