Home / 53,281.36-79,920.15-13,300.57

Finding the Fourth Proportional to 53,281.36, 79,920.15 and 13,300.57

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Solution

The fourth proportional to 53,281.36, 79,920.15 and 13,300.57 is: 19,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,281.36 : 79,920.15 = 13,300.57 : x
  2. Step 2: Convert to fraction form
    53,281.36/79,920.15 = 13,300.57/x
  3. Step 3: Cross multiply
    53,281.36x = 79,920.15 × 13,300.57
  4. Step 4: Simplify right side
    53,281.36x = 1,062,983,549.49
  5. Step 5: Solve for x
    x = 1,062,983,549.49/53,281.36
  6. Step 6: Final answer
    x = 19,950.38

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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.