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Finding the Fourth Proportional to 64,065.09, 96,312.69 and 51,672.09

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Solution

The fourth proportional to 64,065.09, 96,312.69 and 51,672.09 is: 77,681.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,065.09 : 96,312.69 = 51,672.09 : x
  2. Step 2: Convert to fraction form
    64,065.09/96,312.69 = 51,672.09/x
  3. Step 3: Cross multiply
    64,065.09x = 96,312.69 × 51,672.09
  4. Step 4: Simplify right side
    64,065.09x = 4,976,677,985.82
  5. Step 5: Solve for x
    x = 4,976,677,985.82/64,065.09
  6. Step 6: Final answer
    x = 77,681.59

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1.5x scale

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.