Home / 56,708.63-78,282.15-40,366.48

Finding the Fourth Proportional to 56,708.63, 78,282.15 and 40,366.48

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Solution

The fourth proportional to 56,708.63, 78,282.15 and 40,366.48 is: 55,723.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,708.63 : 78,282.15 = 40,366.48 : x
  2. Step 2: Convert to fraction form
    56,708.63/78,282.15 = 40,366.48/x
  3. Step 3: Cross multiply
    56,708.63x = 78,282.15 × 40,366.48
  4. Step 4: Simplify right side
    56,708.63x = 3,159,974,842.33
  5. Step 5: Solve for x
    x = 3,159,974,842.33/56,708.63
  6. Step 6: Final answer
    x = 55,723.00

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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.