Home / 76,149.36-105,073.62-47,835

Finding the Fourth Proportional to 76,149.36, 105,073.62 and 47,835

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Solution

The fourth proportional to 76,149.36, 105,073.62 and 47,835 is: 66,004.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,149.36 : 105,073.62 = 47,835 : x
  2. Step 2: Convert to fraction form
    76,149.36/105,073.62 = 47,835/x
  3. Step 3: Cross multiply
    76,149.36x = 105,073.62 × 47,835
  4. Step 4: Simplify right side
    76,149.36x = 5,026,196,612.70
  5. Step 5: Solve for x
    x = 5,026,196,612.70/76,149.36
  6. Step 6: Final answer
    x = 66,004.45

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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.