Home / 48,423.12-66,779.52-31,409.64

Finding the Fourth Proportional to 48,423.12, 66,779.52 and 31,409.64

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Solution

The fourth proportional to 48,423.12, 66,779.52 and 31,409.64 is: 43,316.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,423.12 : 66,779.52 = 31,409.64 : x
  2. Step 2: Convert to fraction form
    48,423.12/66,779.52 = 31,409.64/x
  3. Step 3: Cross multiply
    48,423.12x = 66,779.52 × 31,409.64
  4. Step 4: Simplify right side
    48,423.12x = 2,097,520,682.57
  5. Step 5: Solve for x
    x = 2,097,520,682.57/48,423.12
  6. Step 6: Final answer
    x = 43,316.51

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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.