Home / 47,088.45-70,631.71-13,807.78

Finding the Fourth Proportional to 47,088.45, 70,631.71 and 13,807.78

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Solution

The fourth proportional to 47,088.45, 70,631.71 and 13,807.78 is: 20,711.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,088.45 : 70,631.71 = 13,807.78 : x
  2. Step 2: Convert to fraction form
    47,088.45/70,631.71 = 13,807.78/x
  3. Step 3: Cross multiply
    47,088.45x = 70,631.71 × 13,807.78
  4. Step 4: Simplify right side
    47,088.45x = 975,267,112.70
  5. Step 5: Solve for x
    x = 975,267,112.70/47,088.45
  6. Step 6: Final answer
    x = 20,711.39

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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.