Home / 51,427.77-70,977.87-31,280.74

Finding the Fourth Proportional to 51,427.77, 70,977.87 and 31,280.74

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Solution

The fourth proportional to 51,427.77, 70,977.87 and 31,280.74 is: 43,172.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,427.77 : 70,977.87 = 31,280.74 : x
  2. Step 2: Convert to fraction form
    51,427.77/70,977.87 = 31,280.74/x
  3. Step 3: Cross multiply
    51,427.77x = 70,977.87 × 31,280.74
  4. Step 4: Simplify right side
    51,427.77x = 2,220,240,297.22
  5. Step 5: Solve for x
    x = 2,220,240,297.22/51,427.77
  6. Step 6: Final answer
    x = 43,172.01

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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.