Home / 55,779.68-76,962.72-31,580.96

Finding the Fourth Proportional to 55,779.68, 76,962.72 and 31,580.96

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Solution

The fourth proportional to 55,779.68, 76,962.72 and 31,580.96 is: 43,574.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,779.68 : 76,962.72 = 31,580.96 : x
  2. Step 2: Convert to fraction form
    55,779.68/76,962.72 = 31,580.96/x
  3. Step 3: Cross multiply
    55,779.68x = 76,962.72 × 31,580.96
  4. Step 4: Simplify right side
    55,779.68x = 2,430,556,581.81
  5. Step 5: Solve for x
    x = 2,430,556,581.81/55,779.68
  6. Step 6: Final answer
    x = 43,574.23

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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.