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Finding the Fourth Proportional to 56,000.40, 84,000.60 and 45,502.80

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Solution

The fourth proportional to 56,000.40, 84,000.60 and 45,502.80 is: 68,254.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,000.40 : 84,000.60 = 45,502.80 : x
  2. Step 2: Convert to fraction form
    56,000.40/84,000.60 = 45,502.80/x
  3. Step 3: Cross multiply
    56,000.40x = 84,000.60 × 45,502.80
  4. Step 4: Simplify right side
    56,000.40x = 3,822,262,501.68
  5. Step 5: Solve for x
    x = 3,822,262,501.68/56,000.40
  6. Step 6: Final answer
    x = 68,254.20

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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.