Home / 52,781.53-72,835.83-28,903.60

Finding the Fourth Proportional to 52,781.53, 72,835.83 and 28,903.60

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Solution

The fourth proportional to 52,781.53, 72,835.83 and 28,903.60 is: 39,885.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.53 : 72,835.83 = 28,903.60 : x
  2. Step 2: Convert to fraction form
    52,781.53/72,835.83 = 28,903.60/x
  3. Step 3: Cross multiply
    52,781.53x = 72,835.83 × 28,903.60
  4. Step 4: Simplify right side
    52,781.53x = 2,105,217,695.99
  5. Step 5: Solve for x
    x = 2,105,217,695.99/52,781.53
  6. Step 6: Final answer
    x = 39,885.50

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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.