Home / 71,838.72-99,178.56-48,005.76

Finding the Fourth Proportional to 71,838.72, 99,178.56 and 48,005.76

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Solution

The fourth proportional to 71,838.72, 99,178.56 and 48,005.76 is: 66,275.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,838.72 : 99,178.56 = 48,005.76 : x
  2. Step 2: Convert to fraction form
    71,838.72/99,178.56 = 48,005.76/x
  3. Step 3: Cross multiply
    71,838.72x = 99,178.56 × 48,005.76
  4. Step 4: Simplify right side
    71,838.72x = 4,761,142,148.51
  5. Step 5: Solve for x
    x = 4,761,142,148.51/71,838.72
  6. Step 6: Final answer
    x = 66,275.43

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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.