Home / 98,923.78-136,562.14-56,474.12

Finding the Fourth Proportional to 98,923.78, 136,562.14 and 56,474.12

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Solution

The fourth proportional to 98,923.78, 136,562.14 and 56,474.12 is: 77,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,923.78 : 136,562.14 = 56,474.12 : x
  2. Step 2: Convert to fraction form
    98,923.78/136,562.14 = 56,474.12/x
  3. Step 3: Cross multiply
    98,923.78x = 136,562.14 × 56,474.12
  4. Step 4: Simplify right side
    98,923.78x = 7,712,226,681.82
  5. Step 5: Solve for x
    x = 7,712,226,681.82/98,923.78
  6. Step 6: Final answer
    x = 77,961.30

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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.