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Finding the Fourth Proportional to 56,610.40, 84,915.60 and 14,490.40

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Solution

The fourth proportional to 56,610.40, 84,915.60 and 14,490.40 is: 21,735.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,610.40 : 84,915.60 = 14,490.40 : x
  2. Step 2: Convert to fraction form
    56,610.40/84,915.60 = 14,490.40/x
  3. Step 3: Cross multiply
    56,610.40x = 84,915.60 × 14,490.40
  4. Step 4: Simplify right side
    56,610.40x = 1,230,461,010.24
  5. Step 5: Solve for x
    x = 1,230,461,010.24/56,610.40
  6. Step 6: Final answer
    x = 21,735.60

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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.