Home / 56,360.78-77,780.52-31,210.82

Finding the Fourth Proportional to 56,360.78, 77,780.52 and 31,210.82

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Solution

The fourth proportional to 56,360.78, 77,780.52 and 31,210.82 is: 43,072.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,360.78 : 77,780.52 = 31,210.82 : x
  2. Step 2: Convert to fraction form
    56,360.78/77,780.52 = 31,210.82/x
  3. Step 3: Cross multiply
    56,360.78x = 77,780.52 × 31,210.82
  4. Step 4: Simplify right side
    56,360.78x = 2,427,593,809.23
  5. Step 5: Solve for x
    x = 2,427,593,809.23/56,360.78
  6. Step 6: Final answer
    x = 43,072.40

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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.