Home / 56,726.77-78,279.90-31,228.18

Finding the Fourth Proportional to 56,726.77, 78,279.90 and 31,228.18

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Solution

The fourth proportional to 56,726.77, 78,279.90 and 31,228.18 is: 43,093.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,726.77 : 78,279.90 = 31,228.18 : x
  2. Step 2: Convert to fraction form
    56,726.77/78,279.90 = 31,228.18/x
  3. Step 3: Cross multiply
    56,726.77x = 78,279.90 × 31,228.18
  4. Step 4: Simplify right side
    56,726.77x = 2,444,538,807.58
  5. Step 5: Solve for x
    x = 2,444,538,807.58/56,726.77
  6. Step 6: Final answer
    x = 43,093.21

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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.