Home / 93,008.40-139,318.20-51,406.80

Finding the Fourth Proportional to 93,008.40, 139,318.20 and 51,406.80

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Solution

The fourth proportional to 93,008.40, 139,318.20 and 51,406.80 is: 77,002.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,008.40 : 139,318.20 = 51,406.80 : x
  2. Step 2: Convert to fraction form
    93,008.40/139,318.20 = 51,406.80/x
  3. Step 3: Cross multiply
    93,008.40x = 139,318.20 × 51,406.80
  4. Step 4: Simplify right side
    93,008.40x = 7,161,902,843.76
  5. Step 5: Solve for x
    x = 7,161,902,843.76/93,008.40
  6. Step 6: Final answer
    x = 77,002.75

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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.