Home / 91,582.48-126,399.06-62,878.66

Finding the Fourth Proportional to 91,582.48, 126,399.06 and 62,878.66

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Solution

The fourth proportional to 91,582.48, 126,399.06 and 62,878.66 is: 86,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,582.48 : 126,399.06 = 62,878.66 : x
  2. Step 2: Convert to fraction form
    91,582.48/126,399.06 = 62,878.66/x
  3. Step 3: Cross multiply
    91,582.48x = 126,399.06 × 62,878.66
  4. Step 4: Simplify right side
    91,582.48x = 7,947,803,518.06
  5. Step 5: Solve for x
    x = 7,947,803,518.06/91,582.48
  6. Step 6: Final answer
    x = 86,783.01

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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.