Home / 56,031.72-77,323.70-30,881.16

Finding the Fourth Proportional to 56,031.72, 77,323.70 and 30,881.16

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Solution

The fourth proportional to 56,031.72, 77,323.70 and 30,881.16 is: 42,615.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,031.72 : 77,323.70 = 30,881.16 : x
  2. Step 2: Convert to fraction form
    56,031.72/77,323.70 = 30,881.16/x
  3. Step 3: Cross multiply
    56,031.72x = 77,323.70 × 30,881.16
  4. Step 4: Simplify right side
    56,031.72x = 2,387,845,551.49
  5. Step 5: Solve for x
    x = 2,387,845,551.49/56,031.72
  6. Step 6: Final answer
    x = 42,615.96

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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.