Home / 90,748.04-136,136.58-31,600.52

Finding the Fourth Proportional to 90,748.04, 136,136.58 and 31,600.52

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Solution

The fourth proportional to 90,748.04, 136,136.58 and 31,600.52 is: 47,405.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,748.04 : 136,136.58 = 31,600.52 : x
  2. Step 2: Convert to fraction form
    90,748.04/136,136.58 = 31,600.52/x
  3. Step 3: Cross multiply
    90,748.04x = 136,136.58 × 31,600.52
  4. Step 4: Simplify right side
    90,748.04x = 4,301,986,719.02
  5. Step 5: Solve for x
    x = 4,301,986,719.02/90,748.04
  6. Step 6: Final answer
    x = 47,405.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.