Home / 91,528.74-126,272.13-55,690.02

Finding the Fourth Proportional to 91,528.74, 126,272.13 and 55,690.02

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Solution

The fourth proportional to 91,528.74, 126,272.13 and 55,690.02 is: 76,829.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,528.74 : 126,272.13 = 55,690.02 : x
  2. Step 2: Convert to fraction form
    91,528.74/126,272.13 = 55,690.02/x
  3. Step 3: Cross multiply
    91,528.74x = 126,272.13 × 55,690.02
  4. Step 4: Simplify right side
    91,528.74x = 7,032,097,445.14
  5. Step 5: Solve for x
    x = 7,032,097,445.14/91,528.74
  6. Step 6: Final answer
    x = 76,829.39

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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.