Home / 45,763.06-63,140.52-31,427.20

Finding the Fourth Proportional to 45,763.06, 63,140.52 and 31,427.20

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Solution

The fourth proportional to 45,763.06, 63,140.52 and 31,427.20 is: 43,360.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,763.06 : 63,140.52 = 31,427.20 : x
  2. Step 2: Convert to fraction form
    45,763.06/63,140.52 = 31,427.20/x
  3. Step 3: Cross multiply
    45,763.06x = 63,140.52 × 31,427.20
  4. Step 4: Simplify right side
    45,763.06x = 1,984,329,750.14
  5. Step 5: Solve for x
    x = 1,984,329,750.14/45,763.06
  6. Step 6: Final answer
    x = 43,360.95

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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.