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Finding the Fourth Proportional to 66,014.80, 98,849.40 and 48,389.20

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Solution

The fourth proportional to 66,014.80, 98,849.40 and 48,389.20 is: 72,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,014.80 : 98,849.40 = 48,389.20 : x
  2. Step 2: Convert to fraction form
    66,014.80/98,849.40 = 48,389.20/x
  3. Step 3: Cross multiply
    66,014.80x = 98,849.40 × 48,389.20
  4. Step 4: Simplify right side
    66,014.80x = 4,783,243,386.48
  5. Step 5: Solve for x
    x = 4,783,243,386.48/66,014.80
  6. Step 6: Final answer
    x = 72,457.14

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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.