Home / 64,276.31-88,690.76-40,386.07

Finding the Fourth Proportional to 64,276.31, 88,690.76 and 40,386.07

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Solution

The fourth proportional to 64,276.31, 88,690.76 and 40,386.07 is: 55,726.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,276.31 : 88,690.76 = 40,386.07 : x
  2. Step 2: Convert to fraction form
    64,276.31/88,690.76 = 40,386.07/x
  3. Step 3: Cross multiply
    64,276.31x = 88,690.76 × 40,386.07
  4. Step 4: Simplify right side
    64,276.31x = 3,581,870,596.33
  5. Step 5: Solve for x
    x = 3,581,870,596.33/64,276.31
  6. Step 6: Final answer
    x = 55,726.14

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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.