Home / 56,379.70-77,801.19-30,886.17

Finding the Fourth Proportional to 56,379.70, 77,801.19 and 30,886.17

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Solution

The fourth proportional to 56,379.70, 77,801.19 and 30,886.17 is: 42,621.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.70 : 77,801.19 = 30,886.17 : x
  2. Step 2: Convert to fraction form
    56,379.70/77,801.19 = 30,886.17/x
  3. Step 3: Cross multiply
    56,379.70x = 77,801.19 × 30,886.17
  4. Step 4: Simplify right side
    56,379.70x = 2,402,980,780.54
  5. Step 5: Solve for x
    x = 2,402,980,780.54/56,379.70
  6. Step 6: Final answer
    x = 42,621.38

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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.