Home / 57,029.96-85,430.12-47,762.55

Finding the Fourth Proportional to 57,029.96, 85,430.12 and 47,762.55

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Solution

The fourth proportional to 57,029.96, 85,430.12 and 47,762.55 is: 71,547.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,029.96 : 85,430.12 = 47,762.55 : x
  2. Step 2: Convert to fraction form
    57,029.96/85,430.12 = 47,762.55/x
  3. Step 3: Cross multiply
    57,029.96x = 85,430.12 × 47,762.55
  4. Step 4: Simplify right side
    57,029.96x = 4,080,360,139.19
  5. Step 5: Solve for x
    x = 4,080,360,139.19/57,029.96
  6. Step 6: Final answer
    x = 71,547.67

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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.