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Finding the Fourth Proportional to 65,931.63, 91,001.93 and 37,653.72

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Solution

The fourth proportional to 65,931.63, 91,001.93 and 37,653.72 is: 51,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,931.63 : 91,001.93 = 37,653.72 : x
  2. Step 2: Convert to fraction form
    65,931.63/91,001.93 = 37,653.72/x
  3. Step 3: Cross multiply
    65,931.63x = 91,001.93 × 37,653.72
  4. Step 4: Simplify right side
    65,931.63x = 3,426,561,003.41
  5. Step 5: Solve for x
    x = 3,426,561,003.41/65,931.63
  6. Step 6: Final answer
    x = 51,971.43

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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.