Home / 78,232.02-107,931.89-51,389.14

Finding the Fourth Proportional to 78,232.02, 107,931.89 and 51,389.14

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Solution

The fourth proportional to 78,232.02, 107,931.89 and 51,389.14 is: 70,898.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,232.02 : 107,931.89 = 51,389.14 : x
  2. Step 2: Convert to fraction form
    78,232.02/107,931.89 = 51,389.14/x
  3. Step 3: Cross multiply
    78,232.02x = 107,931.89 × 51,389.14
  4. Step 4: Simplify right side
    78,232.02x = 5,546,527,005.67
  5. Step 5: Solve for x
    x = 5,546,527,005.67/78,232.02
  6. Step 6: Final answer
    x = 70,898.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.