Home / 50,724.31-69,999.49-28,368.31

Finding the Fourth Proportional to 50,724.31, 69,999.49 and 28,368.31

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Solution

The fourth proportional to 50,724.31, 69,999.49 and 28,368.31 is: 39,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,724.31 : 69,999.49 = 28,368.31 : x
  2. Step 2: Convert to fraction form
    50,724.31/69,999.49 = 28,368.31/x
  3. Step 3: Cross multiply
    50,724.31x = 69,999.49 × 28,368.31
  4. Step 4: Simplify right side
    50,724.31x = 1,985,767,232.16
  5. Step 5: Solve for x
    x = 1,985,767,232.16/50,724.31
  6. Step 6: Final answer
    x = 39,148.24

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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.