Home / 91,873.20-126,804.78-56,055.54

Finding the Fourth Proportional to 91,873.20, 126,804.78 and 56,055.54

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Solution

The fourth proportional to 91,873.20, 126,804.78 and 56,055.54 is: 77,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,873.20 : 126,804.78 = 56,055.54 : x
  2. Step 2: Convert to fraction form
    91,873.20/126,804.78 = 56,055.54/x
  3. Step 3: Cross multiply
    91,873.20x = 126,804.78 × 56,055.54
  4. Step 4: Simplify right side
    91,873.20x = 7,108,110,417.48
  5. Step 5: Solve for x
    x = 7,108,110,417.48/91,873.20
  6. Step 6: Final answer
    x = 77,368.70

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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.