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Finding the Fourth Proportional to 87,237.45, 130,746.42 and 47,254.90

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Solution

The fourth proportional to 87,237.45, 130,746.42 and 47,254.90 is: 70,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,237.45 : 130,746.42 = 47,254.90 : x
  2. Step 2: Convert to fraction form
    87,237.45/130,746.42 = 47,254.90/x
  3. Step 3: Cross multiply
    87,237.45x = 130,746.42 × 47,254.90
  4. Step 4: Simplify right side
    87,237.45x = 6,178,409,093.05
  5. Step 5: Solve for x
    x = 6,178,409,093.05/87,237.45
  6. Step 6: Final answer
    x = 70,822.90

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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.