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Finding the Fourth Proportional to 43,124.52, 64,664.90 and 19,730.91

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Solution

The fourth proportional to 43,124.52, 64,664.90 and 19,730.91 is: 29,586.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,124.52 : 64,664.90 = 19,730.91 : x
  2. Step 2: Convert to fraction form
    43,124.52/64,664.90 = 19,730.91/x
  3. Step 3: Cross multiply
    43,124.52x = 64,664.90 × 19,730.91
  4. Step 4: Simplify right side
    43,124.52x = 1,275,897,054.90
  5. Step 5: Solve for x
    x = 1,275,897,054.90/43,124.52
  6. Step 6: Final answer
    x = 29,586.35

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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.