Home / 94,309.21-130,147.23-51,289.20

Finding the Fourth Proportional to 94,309.21, 130,147.23 and 51,289.20

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Solution

The fourth proportional to 94,309.21, 130,147.23 and 51,289.20 is: 70,779.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,309.21 : 130,147.23 = 51,289.20 : x
  2. Step 2: Convert to fraction form
    94,309.21/130,147.23 = 51,289.20/x
  3. Step 3: Cross multiply
    94,309.21x = 130,147.23 × 51,289.20
  4. Step 4: Simplify right side
    94,309.21x = 6,675,146,658.18
  5. Step 5: Solve for x
    x = 6,675,146,658.18/94,309.21
  6. Step 6: Final answer
    x = 70,779.38

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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.