Home / 65,421.24-90,284.08-37,129.56

Finding the Fourth Proportional to 65,421.24, 90,284.08 and 37,129.56

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Solution

The fourth proportional to 65,421.24, 90,284.08 and 37,129.56 is: 51,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421.24 : 90,284.08 = 37,129.56 : x
  2. Step 2: Convert to fraction form
    65,421.24/90,284.08 = 37,129.56/x
  3. Step 3: Cross multiply
    65,421.24x = 90,284.08 × 37,129.56
  4. Step 4: Simplify right side
    65,421.24x = 3,352,208,165.40
  5. Step 5: Solve for x
    x = 3,352,208,165.40/65,421.24
  6. Step 6: Final answer
    x = 51,240.36

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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.