Home / 52,811.85-72,879.93-28,938.47

Finding the Fourth Proportional to 52,811.85, 72,879.93 and 28,938.47

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Solution

The fourth proportional to 52,811.85, 72,879.93 and 28,938.47 is: 39,934.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,811.85 : 72,879.93 = 28,938.47 : x
  2. Step 2: Convert to fraction form
    52,811.85/72,879.93 = 28,938.47/x
  3. Step 3: Cross multiply
    52,811.85x = 72,879.93 × 28,938.47
  4. Step 4: Simplify right side
    52,811.85x = 2,109,033,303.51
  5. Step 5: Solve for x
    x = 2,109,033,303.51/52,811.85
  6. Step 6: Final answer
    x = 39,934.85

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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.