Home / 90,929.64-125,448.12-56,924.04

Finding the Fourth Proportional to 90,929.64, 125,448.12 and 56,924.04

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Solution

The fourth proportional to 90,929.64, 125,448.12 and 56,924.04 is: 78,533.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,929.64 : 125,448.12 = 56,924.04 : x
  2. Step 2: Convert to fraction form
    90,929.64/125,448.12 = 56,924.04/x
  3. Step 3: Cross multiply
    90,929.64x = 125,448.12 × 56,924.04
  4. Step 4: Simplify right side
    90,929.64x = 7,141,013,800.80
  5. Step 5: Solve for x
    x = 7,141,013,800.80/90,929.64
  6. Step 6: Final answer
    x = 78,533.40

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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.