Home / 90,673.02-125,128.29-49,838.09

Finding the Fourth Proportional to 90,673.02, 125,128.29 and 49,838.09

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Solution

The fourth proportional to 90,673.02, 125,128.29 and 49,838.09 is: 68,776.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,673.02 : 125,128.29 = 49,838.09 : x
  2. Step 2: Convert to fraction form
    90,673.02/125,128.29 = 49,838.09/x
  3. Step 3: Cross multiply
    90,673.02x = 125,128.29 × 49,838.09
  4. Step 4: Simplify right side
    90,673.02x = 6,236,154,539.82
  5. Step 5: Solve for x
    x = 6,236,154,539.82/90,673.02
  6. Step 6: Final answer
    x = 68,776.30

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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.