Home / 84,974.48-117,281.76-64,795.32

Finding the Fourth Proportional to 84,974.48, 117,281.76 and 64,795.32

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Solution

The fourth proportional to 84,974.48, 117,281.76 and 64,795.32 is: 89,430.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,974.48 : 117,281.76 = 64,795.32 : x
  2. Step 2: Convert to fraction form
    84,974.48/117,281.76 = 64,795.32/x
  3. Step 3: Cross multiply
    84,974.48x = 117,281.76 × 64,795.32
  4. Step 4: Simplify right side
    84,974.48x = 7,599,308,926.38
  5. Step 5: Solve for x
    x = 7,599,308,926.38/84,974.48
  6. Step 6: Final answer
    x = 89,430.49

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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.