Home / 45,089.90-67,577.34-21,397.40

Finding the Fourth Proportional to 45,089.90, 67,577.34 and 21,397.40

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Solution

The fourth proportional to 45,089.90, 67,577.34 and 21,397.40 is: 32,068.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,089.90 : 67,577.34 = 21,397.40 : x
  2. Step 2: Convert to fraction form
    45,089.90/67,577.34 = 21,397.40/x
  3. Step 3: Cross multiply
    45,089.90x = 67,577.34 × 21,397.40
  4. Step 4: Simplify right side
    45,089.90x = 1,445,979,374.92
  5. Step 5: Solve for x
    x = 1,445,979,374.92/45,089.90
  6. Step 6: Final answer
    x = 32,068.81

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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.