Home / 45,637.80-68,427.10-19,335.40

Finding the Fourth Proportional to 45,637.80, 68,427.10 and 19,335.40

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Solution

The fourth proportional to 45,637.80, 68,427.10 and 19,335.40 is: 28,990.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,637.80 : 68,427.10 = 19,335.40 : x
  2. Step 2: Convert to fraction form
    45,637.80/68,427.10 = 19,335.40/x
  3. Step 3: Cross multiply
    45,637.80x = 68,427.10 × 19,335.40
  4. Step 4: Simplify right side
    45,637.80x = 1,323,065,349.34
  5. Step 5: Solve for x
    x = 1,323,065,349.34/45,637.80
  6. Step 6: Final answer
    x = 28,990.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.