Home / 56,487.09-77,953.23-30,994.77

Finding the Fourth Proportional to 56,487.09, 77,953.23 and 30,994.77

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Solution

The fourth proportional to 56,487.09, 77,953.23 and 30,994.77 is: 42,773.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,487.09 : 77,953.23 = 30,994.77 : x
  2. Step 2: Convert to fraction form
    56,487.09/77,953.23 = 30,994.77/x
  3. Step 3: Cross multiply
    56,487.09x = 77,953.23 × 30,994.77
  4. Step 4: Simplify right side
    56,487.09x = 2,416,142,434.61
  5. Step 5: Solve for x
    x = 2,416,142,434.61/56,487.09
  6. Step 6: Final answer
    x = 42,773.36

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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.