Home / 57,580.04-79,459.20-39,430.22

Finding the Fourth Proportional to 57,580.04, 79,459.20 and 39,430.22

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Solution

The fourth proportional to 57,580.04, 79,459.20 and 39,430.22 is: 54,412.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,580.04 : 79,459.20 = 39,430.22 : x
  2. Step 2: Convert to fraction form
    57,580.04/79,459.20 = 39,430.22/x
  3. Step 3: Cross multiply
    57,580.04x = 79,459.20 × 39,430.22
  4. Step 4: Simplify right side
    57,580.04x = 3,133,093,339.73
  5. Step 5: Solve for x
    x = 3,133,093,339.73/57,580.04
  6. Step 6: Final answer
    x = 54,412.83

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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.