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Finding the Fourth Proportional to 57,808.40, 86,453.40 and 48,477.20

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Solution

The fourth proportional to 57,808.40, 86,453.40 and 48,477.20 is: 72,498.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,808.40 : 86,453.40 = 48,477.20 : x
  2. Step 2: Convert to fraction form
    57,808.40/86,453.40 = 48,477.20/x
  3. Step 3: Cross multiply
    57,808.40x = 86,453.40 × 48,477.20
  4. Step 4: Simplify right side
    57,808.40x = 4,191,018,762.48
  5. Step 5: Solve for x
    x = 4,191,018,762.48/57,808.40
  6. Step 6: Final answer
    x = 72,498.44

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.