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Finding the Fourth Proportional to 47,999.70, 72,038.06 and 21,706.74

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Solution

The fourth proportional to 47,999.70, 72,038.06 and 21,706.74 is: 32,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,999.70 : 72,038.06 = 21,706.74 : x
  2. Step 2: Convert to fraction form
    47,999.70/72,038.06 = 21,706.74/x
  3. Step 3: Cross multiply
    47,999.70x = 72,038.06 × 21,706.74
  4. Step 4: Simplify right side
    47,999.70x = 1,563,711,438.52
  5. Step 5: Solve for x
    x = 1,563,711,438.52/47,999.70
  6. Step 6: Final answer
    x = 32,577.53

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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.