Home / 56,070.81-77,376.20-30,577.91

Finding the Fourth Proportional to 56,070.81, 77,376.20 and 30,577.91

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Solution

The fourth proportional to 56,070.81, 77,376.20 and 30,577.91 is: 42,196.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,070.81 : 77,376.20 = 30,577.91 : x
  2. Step 2: Convert to fraction form
    56,070.81/77,376.20 = 30,577.91/x
  3. Step 3: Cross multiply
    56,070.81x = 77,376.20 × 30,577.91
  4. Step 4: Simplify right side
    56,070.81x = 2,366,001,939.97
  5. Step 5: Solve for x
    x = 2,366,001,939.97/56,070.81
  6. Step 6: Final answer
    x = 42,196.68

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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.