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Finding the Fourth Proportional to 66,430.71, 91,669.77 and 37,363.43

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Solution

The fourth proportional to 66,430.71, 91,669.77 and 37,363.43 is: 51,558.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,430.71 : 91,669.77 = 37,363.43 : x
  2. Step 2: Convert to fraction form
    66,430.71/91,669.77 = 37,363.43/x
  3. Step 3: Cross multiply
    66,430.71x = 91,669.77 × 37,363.43
  4. Step 4: Simplify right side
    66,430.71x = 3,425,096,576.16
  5. Step 5: Solve for x
    x = 3,425,096,576.16/66,430.71
  6. Step 6: Final answer
    x = 51,558.93

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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.