Home / 98,931.52-148,331.40-51,429.88

Finding the Fourth Proportional to 98,931.52, 148,331.40 and 51,429.88

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Solution

The fourth proportional to 98,931.52, 148,331.40 and 51,429.88 is: 77,110.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,931.52 : 148,331.40 = 51,429.88 : x
  2. Step 2: Convert to fraction form
    98,931.52/148,331.40 = 51,429.88/x
  3. Step 3: Cross multiply
    98,931.52x = 148,331.40 × 51,429.88
  4. Step 4: Simplify right side
    98,931.52x = 7,628,666,102.23
  5. Step 5: Solve for x
    x = 7,628,666,102.23/98,931.52
  6. Step 6: Final answer
    x = 77,110.57

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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.