Home / 87,800.98-121,152.31-53,327.77

Finding the Fourth Proportional to 87,800.98, 121,152.31 and 53,327.77

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Solution

The fourth proportional to 87,800.98, 121,152.31 and 53,327.77 is: 73,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,800.98 : 121,152.31 = 53,327.77 : x
  2. Step 2: Convert to fraction form
    87,800.98/121,152.31 = 53,327.77/x
  3. Step 3: Cross multiply
    87,800.98x = 121,152.31 × 53,327.77
  4. Step 4: Simplify right side
    87,800.98x = 6,460,782,522.65
  5. Step 5: Solve for x
    x = 6,460,782,522.65/87,800.98
  6. Step 6: Final answer
    x = 73,584.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.