Home / 96,931.28-145,307.31-51,983.88

Finding the Fourth Proportional to 96,931.28, 145,307.31 and 51,983.88

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Solution

The fourth proportional to 96,931.28, 145,307.31 and 51,983.88 is: 77,927.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,931.28 : 145,307.31 = 51,983.88 : x
  2. Step 2: Convert to fraction form
    96,931.28/145,307.31 = 51,983.88/x
  3. Step 3: Cross multiply
    96,931.28x = 145,307.31 × 51,983.88
  4. Step 4: Simplify right side
    96,931.28x = 7,553,637,824.18
  5. Step 5: Solve for x
    x = 7,553,637,824.18/96,931.28
  6. Step 6: Final answer
    x = 77,927.76

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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.