Home / 91,569.72-126,385.74-53,865.48

Finding the Fourth Proportional to 91,569.72, 126,385.74 and 53,865.48

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Solution

The fourth proportional to 91,569.72, 126,385.74 and 53,865.48 is: 74,345.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,569.72 : 126,385.74 = 53,865.48 : x
  2. Step 2: Convert to fraction form
    91,569.72/126,385.74 = 53,865.48/x
  3. Step 3: Cross multiply
    91,569.72x = 126,385.74 × 53,865.48
  4. Step 4: Simplify right side
    91,569.72x = 6,807,828,550.26
  5. Step 5: Solve for x
    x = 6,807,828,550.26/91,569.72
  6. Step 6: Final answer
    x = 74,345.85

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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.