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Finding the Fourth Proportional to 57,461.40, 86,216.40 and 36,417.60

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Solution

The fourth proportional to 57,461.40, 86,216.40 and 36,417.60 is: 54,641.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,461.40 : 86,216.40 = 36,417.60 : x
  2. Step 2: Convert to fraction form
    57,461.40/86,216.40 = 36,417.60/x
  3. Step 3: Cross multiply
    57,461.40x = 86,216.40 × 36,417.60
  4. Step 4: Simplify right side
    57,461.40x = 3,139,794,368.64
  5. Step 5: Solve for x
    x = 3,139,794,368.64/57,461.40
  6. Step 6: Final answer
    x = 54,641.80

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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.