Home / 52,685.04-72,705.93-28,811.21

Finding the Fourth Proportional to 52,685.04, 72,705.93 and 28,811.21

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Solution

The fourth proportional to 52,685.04, 72,705.93 and 28,811.21 is: 39,759.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,685.04 : 72,705.93 = 28,811.21 : x
  2. Step 2: Convert to fraction form
    52,685.04/72,705.93 = 28,811.21/x
  3. Step 3: Cross multiply
    52,685.04x = 72,705.93 × 28,811.21
  4. Step 4: Simplify right side
    52,685.04x = 2,094,745,561.99
  5. Step 5: Solve for x
    x = 2,094,745,561.99/52,685.04
  6. Step 6: Final answer
    x = 39,759.78

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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.