Home / 56,031.18-77,323.05-30,880.70

Finding the Fourth Proportional to 56,031.18, 77,323.05 and 30,880.70

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Solution

The fourth proportional to 56,031.18, 77,323.05 and 30,880.70 is: 42,615.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,031.18 : 77,323.05 = 30,880.70 : x
  2. Step 2: Convert to fraction form
    56,031.18/77,323.05 = 30,880.70/x
  3. Step 3: Cross multiply
    56,031.18x = 77,323.05 × 30,880.70
  4. Step 4: Simplify right side
    56,031.18x = 2,387,789,910.14
  5. Step 5: Solve for x
    x = 2,387,789,910.14/56,031.18
  6. Step 6: Final answer
    x = 42,615.38

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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.