Home / 45,688.20-63,040.50-31,518.60

Finding the Fourth Proportional to 45,688.20, 63,040.50 and 31,518.60

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Solution

The fourth proportional to 45,688.20, 63,040.50 and 31,518.60 is: 43,489.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,688.20 : 63,040.50 = 31,518.60 : x
  2. Step 2: Convert to fraction form
    45,688.20/63,040.50 = 31,518.60/x
  3. Step 3: Cross multiply
    45,688.20x = 63,040.50 × 31,518.60
  4. Step 4: Simplify right side
    45,688.20x = 1,986,948,303.30
  5. Step 5: Solve for x
    x = 1,986,948,303.30/45,688.20
  6. Step 6: Final answer
    x = 43,489.31

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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.