Home / 50,031.04-69,036.96-28,811.20

Finding the Fourth Proportional to 50,031.04, 69,036.96 and 28,811.20

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Solution

The fourth proportional to 50,031.04, 69,036.96 and 28,811.20 is: 39,756.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,031.04 : 69,036.96 = 28,811.20 : x
  2. Step 2: Convert to fraction form
    50,031.04/69,036.96 = 28,811.20/x
  3. Step 3: Cross multiply
    50,031.04x = 69,036.96 × 28,811.20
  4. Step 4: Simplify right side
    50,031.04x = 1,989,037,661.95
  5. Step 5: Solve for x
    x = 1,989,037,661.95/50,031.04
  6. Step 6: Final answer
    x = 39,756.07

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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.