Home / 91,263.04-136,899.42-28,938.40

Finding the Fourth Proportional to 91,263.04, 136,899.42 and 28,938.40

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Solution

The fourth proportional to 91,263.04, 136,899.42 and 28,938.40 is: 43,409.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,263.04 : 136,899.42 = 28,938.40 : x
  2. Step 2: Convert to fraction form
    91,263.04/136,899.42 = 28,938.40/x
  3. Step 3: Cross multiply
    91,263.04x = 136,899.42 × 28,938.40
  4. Step 4: Simplify right side
    91,263.04x = 3,961,650,175.73
  5. Step 5: Solve for x
    x = 3,961,650,175.73/91,263.04
  6. Step 6: Final answer
    x = 43,409.14

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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.