Home / 89,124.56-122,980.20-53,301.50

Finding the Fourth Proportional to 89,124.56, 122,980.20 and 53,301.50

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Solution

The fourth proportional to 89,124.56, 122,980.20 and 53,301.50 is: 73,549.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,124.56 : 122,980.20 = 53,301.50 : x
  2. Step 2: Convert to fraction form
    89,124.56/122,980.20 = 53,301.50/x
  3. Step 3: Cross multiply
    89,124.56x = 122,980.20 × 53,301.50
  4. Step 4: Simplify right side
    89,124.56x = 6,555,029,130.30
  5. Step 5: Solve for x
    x = 6,555,029,130.30/89,124.56
  6. Step 6: Final answer
    x = 73,549.08

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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.