Home / 50,720.28-69,989.58-28,058.91

Finding the Fourth Proportional to 50,720.28, 69,989.58 and 28,058.91

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Solution

The fourth proportional to 50,720.28, 69,989.58 and 28,058.91 is: 38,718.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,720.28 : 69,989.58 = 28,058.91 : x
  2. Step 2: Convert to fraction form
    50,720.28/69,989.58 = 28,058.91/x
  3. Step 3: Cross multiply
    50,720.28x = 69,989.58 × 28,058.91
  4. Step 4: Simplify right side
    50,720.28x = 1,963,831,326.16
  5. Step 5: Solve for x
    x = 1,963,831,326.16/50,720.28
  6. Step 6: Final answer
    x = 38,718.86

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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.