Home / 57,030.96-85,431.61-47,763.55

Finding the Fourth Proportional to 57,030.96, 85,431.61 and 47,763.55

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Solution

The fourth proportional to 57,030.96, 85,431.61 and 47,763.55 is: 71,549.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,030.96 : 85,431.61 = 47,763.55 : x
  2. Step 2: Convert to fraction form
    57,030.96/85,431.61 = 47,763.55/x
  3. Step 3: Cross multiply
    57,030.96x = 85,431.61 × 47,763.55
  4. Step 4: Simplify right side
    57,030.96x = 4,080,516,975.82
  5. Step 5: Solve for x
    x = 4,080,516,975.82/57,030.96
  6. Step 6: Final answer
    x = 71,549.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.