Home / 56,121.77-77,445.64-30,627.50

Finding the Fourth Proportional to 56,121.77, 77,445.64 and 30,627.50

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Solution

The fourth proportional to 56,121.77, 77,445.64 and 30,627.50 is: 42,264.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,121.77 : 77,445.64 = 30,627.50 : x
  2. Step 2: Convert to fraction form
    56,121.77/77,445.64 = 30,627.50/x
  3. Step 3: Cross multiply
    56,121.77x = 77,445.64 × 30,627.50
  4. Step 4: Simplify right side
    56,121.77x = 2,371,965,875.30
  5. Step 5: Solve for x
    x = 2,371,965,875.30/56,121.77
  6. Step 6: Final answer
    x = 42,264.63

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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.