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Finding the Fourth Proportional to 60,291.60, 90,437.40 and 20,844.60

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Solution

The fourth proportional to 60,291.60, 90,437.40 and 20,844.60 is: 31,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,291.60 : 90,437.40 = 20,844.60 : x
  2. Step 2: Convert to fraction form
    60,291.60/90,437.40 = 20,844.60/x
  3. Step 3: Cross multiply
    60,291.60x = 90,437.40 × 20,844.60
  4. Step 4: Simplify right side
    60,291.60x = 1,885,131,428.04
  5. Step 5: Solve for x
    x = 1,885,131,428.04/60,291.60
  6. Step 6: Final answer
    x = 31,266.90

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1.5x scale

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.