Home / 91,582.72-126,386.88-51,296.32

Finding the Fourth Proportional to 91,582.72, 126,386.88 and 51,296.32

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Solution

The fourth proportional to 91,582.72, 126,386.88 and 51,296.32 is: 70,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,582.72 : 126,386.88 = 51,296.32 : x
  2. Step 2: Convert to fraction form
    91,582.72/126,386.88 = 51,296.32/x
  3. Step 3: Cross multiply
    91,582.72x = 126,386.88 × 51,296.32
  4. Step 4: Simplify right side
    91,582.72x = 6,483,181,840.28
  5. Step 5: Solve for x
    x = 6,483,181,840.28/91,582.72
  6. Step 6: Final answer
    x = 70,790.45

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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.