Home / 52,740.64-72,779-28,867.76

Finding the Fourth Proportional to 52,740.64, 72,779 and 28,867.76

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Solution

The fourth proportional to 52,740.64, 72,779 and 28,867.76 is: 39,835.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,740.64 : 72,779 = 28,867.76 : x
  2. Step 2: Convert to fraction form
    52,740.64/72,779 = 28,867.76/x
  3. Step 3: Cross multiply
    52,740.64x = 72,779 × 28,867.76
  4. Step 4: Simplify right side
    52,740.64x = 2,100,966,705.04
  5. Step 5: Solve for x
    x = 2,100,966,705.04/52,740.64
  6. Step 6: Final answer
    x = 39,835.82

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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.