Home / 56,406.96-77,841.30-31,256.40

Finding the Fourth Proportional to 56,406.96, 77,841.30 and 31,256.40

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Solution

The fourth proportional to 56,406.96, 77,841.30 and 31,256.40 is: 43,133.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,406.96 : 77,841.30 = 31,256.40 : x
  2. Step 2: Convert to fraction form
    56,406.96/77,841.30 = 31,256.40/x
  3. Step 3: Cross multiply
    56,406.96x = 77,841.30 × 31,256.40
  4. Step 4: Simplify right side
    56,406.96x = 2,433,038,809.32
  5. Step 5: Solve for x
    x = 2,433,038,809.32/56,406.96
  6. Step 6: Final answer
    x = 43,133.66

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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.