Home / 47,154.16-70,721.34-13,865.32

Finding the Fourth Proportional to 47,154.16, 70,721.34 and 13,865.32

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Solution

The fourth proportional to 47,154.16, 70,721.34 and 13,865.32 is: 20,795.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,154.16 : 70,721.34 = 13,865.32 : x
  2. Step 2: Convert to fraction form
    47,154.16/70,721.34 = 13,865.32/x
  3. Step 3: Cross multiply
    47,154.16x = 70,721.34 × 13,865.32
  4. Step 4: Simplify right side
    47,154.16x = 980,574,009.93
  5. Step 5: Solve for x
    x = 980,574,009.93/47,154.16
  6. Step 6: Final answer
    x = 20,795.07

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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.