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Finding the Fourth Proportional to 66,087.50, 91,188.99 and 37,407.02

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Solution

The fourth proportional to 66,087.50, 91,188.99 and 37,407.02 is: 51,615.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,087.50 : 91,188.99 = 37,407.02 : x
  2. Step 2: Convert to fraction form
    66,087.50/91,188.99 = 37,407.02/x
  3. Step 3: Cross multiply
    66,087.50x = 91,188.99 × 37,407.02
  4. Step 4: Simplify right side
    66,087.50x = 3,411,108,372.71
  5. Step 5: Solve for x
    x = 3,411,108,372.71/66,087.50
  6. Step 6: Final answer
    x = 51,615.03

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1.5x scale

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.