Home / 91,530.90-137,298.76-29,201.40

Finding the Fourth Proportional to 91,530.90, 137,298.76 and 29,201.40

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Solution

The fourth proportional to 91,530.90, 137,298.76 and 29,201.40 is: 43,802.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,530.90 : 137,298.76 = 29,201.40 : x
  2. Step 2: Convert to fraction form
    91,530.90/137,298.76 = 29,201.40/x
  3. Step 3: Cross multiply
    91,530.90x = 137,298.76 × 29,201.40
  4. Step 4: Simplify right side
    91,530.90x = 4,009,316,010.26
  5. Step 5: Solve for x
    x = 4,009,316,010.26/91,530.90
  6. Step 6: Final answer
    x = 43,802.87

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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.