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Finding the Fourth Proportional to 56,684.40, 85,026.60 and 31,801.20

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Solution

The fourth proportional to 56,684.40, 85,026.60 and 31,801.20 is: 47,701.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,684.40 : 85,026.60 = 31,801.20 : x
  2. Step 2: Convert to fraction form
    56,684.40/85,026.60 = 31,801.20/x
  3. Step 3: Cross multiply
    56,684.40x = 85,026.60 × 31,801.20
  4. Step 4: Simplify right side
    56,684.40x = 2,703,947,911.92
  5. Step 5: Solve for x
    x = 2,703,947,911.92/56,684.40
  6. Step 6: Final answer
    x = 47,701.80

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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.