Home / 51,171.88-70,616.93-28,509.47

Finding the Fourth Proportional to 51,171.88, 70,616.93 and 28,509.47

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Solution

The fourth proportional to 51,171.88, 70,616.93 and 28,509.47 is: 39,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,171.88 : 70,616.93 = 28,509.47 : x
  2. Step 2: Convert to fraction form
    51,171.88/70,616.93 = 28,509.47/x
  3. Step 3: Cross multiply
    51,171.88x = 70,616.93 × 28,509.47
  4. Step 4: Simplify right side
    51,171.88x = 2,013,251,495.14
  5. Step 5: Solve for x
    x = 2,013,251,495.14/51,171.88
  6. Step 6: Final answer
    x = 39,342.93

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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.