Home / 56,503.09-77,974.40-31,009.65

Finding the Fourth Proportional to 56,503.09, 77,974.40 and 31,009.65

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Solution

The fourth proportional to 56,503.09, 77,974.40 and 31,009.65 is: 42,793.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,503.09 : 77,974.40 = 31,009.65 : x
  2. Step 2: Convert to fraction form
    56,503.09/77,974.40 = 31,009.65/x
  3. Step 3: Cross multiply
    56,503.09x = 77,974.40 × 31,009.65
  4. Step 4: Simplify right side
    56,503.09x = 2,417,958,852.96
  5. Step 5: Solve for x
    x = 2,417,958,852.96/56,503.09
  6. Step 6: Final answer
    x = 42,793.39

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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.