Home / 53,421.21-73,718.28-29,217.36

Finding the Fourth Proportional to 53,421.21, 73,718.28 and 29,217.36

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Solution

The fourth proportional to 53,421.21, 73,718.28 and 29,217.36 is: 40,318.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,421.21 : 73,718.28 = 29,217.36 : x
  2. Step 2: Convert to fraction form
    53,421.21/73,718.28 = 29,217.36/x
  3. Step 3: Cross multiply
    53,421.21x = 73,718.28 × 29,217.36
  4. Step 4: Simplify right side
    53,421.21x = 2,153,853,525.34
  5. Step 5: Solve for x
    x = 2,153,853,525.34/53,421.21
  6. Step 6: Final answer
    x = 40,318.32

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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.