Home / 52,656.80-72,666.38-28,783.57

Finding the Fourth Proportional to 52,656.80, 72,666.38 and 28,783.57

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Solution

The fourth proportional to 52,656.80, 72,666.38 and 28,783.57 is: 39,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,656.80 : 72,666.38 = 28,783.57 : x
  2. Step 2: Convert to fraction form
    52,656.80/72,666.38 = 28,783.57/x
  3. Step 3: Cross multiply
    52,656.80x = 72,666.38 × 28,783.57
  4. Step 4: Simplify right side
    52,656.80x = 2,091,597,725.67
  5. Step 5: Solve for x
    x = 2,091,597,725.67/52,656.80
  6. Step 6: Final answer
    x = 39,721.32

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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.