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Finding the Fourth Proportional to 56,491.80, 84,834.90 and 30,247.80

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Solution

The fourth proportional to 56,491.80, 84,834.90 and 30,247.80 is: 45,423.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,491.80 : 84,834.90 = 30,247.80 : x
  2. Step 2: Convert to fraction form
    56,491.80/84,834.90 = 30,247.80/x
  3. Step 3: Cross multiply
    56,491.80x = 84,834.90 × 30,247.80
  4. Step 4: Simplify right side
    56,491.80x = 2,566,069,088.22
  5. Step 5: Solve for x
    x = 2,566,069,088.22/56,491.80
  6. Step 6: Final answer
    x = 45,423.74

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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.