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Finding the Fourth Proportional to 30,064.51, 45,095.73 and 7,877.71

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Solution

The fourth proportional to 30,064.51, 45,095.73 and 7,877.71 is: 11,816.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,064.51 : 45,095.73 = 7,877.71 : x
  2. Step 2: Convert to fraction form
    30,064.51/45,095.73 = 7,877.71/x
  3. Step 3: Cross multiply
    30,064.51x = 45,095.73 × 7,877.71
  4. Step 4: Simplify right side
    30,064.51x = 355,251,083.18
  5. Step 5: Solve for x
    x = 355,251,083.18/30,064.51
  6. Step 6: Final answer
    x = 11,816.29

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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.