Home / 57,268.48-79,031.34-42,902.86

Finding the Fourth Proportional to 57,268.48, 79,031.34 and 42,902.86

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Solution

The fourth proportional to 57,268.48, 79,031.34 and 42,902.86 is: 59,206.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,268.48 : 79,031.34 = 42,902.86 : x
  2. Step 2: Convert to fraction form
    57,268.48/79,031.34 = 42,902.86/x
  3. Step 3: Cross multiply
    57,268.48x = 79,031.34 × 42,902.86
  4. Step 4: Simplify right side
    57,268.48x = 3,390,670,515.63
  5. Step 5: Solve for x
    x = 3,390,670,515.63/57,268.48
  6. Step 6: Final answer
    x = 59,206.57

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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.