Home / 90,897.42-136,365.71-45,330.02

Finding the Fourth Proportional to 90,897.42, 136,365.71 and 45,330.02

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Solution

The fourth proportional to 90,897.42, 136,365.71 and 45,330.02 is: 68,004.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,897.42 : 136,365.71 = 45,330.02 : x
  2. Step 2: Convert to fraction form
    90,897.42/136,365.71 = 45,330.02/x
  3. Step 3: Cross multiply
    90,897.42x = 136,365.71 × 45,330.02
  4. Step 4: Simplify right side
    90,897.42x = 6,181,460,218.96
  5. Step 5: Solve for x
    x = 6,181,460,218.96/90,897.42
  6. Step 6: Final answer
    x = 68,004.80

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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.