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Finding the Fourth Proportional to 56,151.70, 77,486.02 and 30,652.99

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Solution

The fourth proportional to 56,151.70, 77,486.02 and 30,652.99 is: 42,299.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,151.70 : 77,486.02 = 30,652.99 : x
  2. Step 2: Convert to fraction form
    56,151.70/77,486.02 = 30,652.99/x
  3. Step 3: Cross multiply
    56,151.70x = 77,486.02 × 30,652.99
  4. Step 4: Simplify right side
    56,151.70x = 2,375,178,196.20
  5. Step 5: Solve for x
    x = 2,375,178,196.20/56,151.70
  6. Step 6: Final answer
    x = 42,299.31

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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.