Home / 52,657.18-72,666.90-28,783.95

Finding the Fourth Proportional to 52,657.18, 72,666.90 and 28,783.95

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Solution

The fourth proportional to 52,657.18, 72,666.90 and 28,783.95 is: 39,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,657.18 : 72,666.90 = 28,783.95 : x
  2. Step 2: Convert to fraction form
    52,657.18/72,666.90 = 28,783.95/x
  3. Step 3: Cross multiply
    52,657.18x = 72,666.90 × 28,783.95
  4. Step 4: Simplify right side
    52,657.18x = 2,091,640,143.75
  5. Step 5: Solve for x
    x = 2,091,640,143.75/52,657.18
  6. Step 6: Final answer
    x = 39,721.84

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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.