Home / 57,549.55-79,430.63-38,675.74

Finding the Fourth Proportional to 57,549.55, 79,430.63 and 38,675.74

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Solution

The fourth proportional to 57,549.55, 79,430.63 and 38,675.74 is: 53,380.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,549.55 : 79,430.63 = 38,675.74 : x
  2. Step 2: Convert to fraction form
    57,549.55/79,430.63 = 38,675.74/x
  3. Step 3: Cross multiply
    57,549.55x = 79,430.63 × 38,675.74
  4. Step 4: Simplify right side
    57,549.55x = 3,072,038,393.92
  5. Step 5: Solve for x
    x = 3,072,038,393.92/57,549.55
  6. Step 6: Final answer
    x = 53,380.75

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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.