Home / 45,158.81-67,741.32-13,567.55

Finding the Fourth Proportional to 45,158.81, 67,741.32 and 13,567.55

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Solution

The fourth proportional to 45,158.81, 67,741.32 and 13,567.55 is: 20,352.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,158.81 : 67,741.32 = 13,567.55 : x
  2. Step 2: Convert to fraction form
    45,158.81/67,741.32 = 13,567.55/x
  3. Step 3: Cross multiply
    45,158.81x = 67,741.32 × 13,567.55
  4. Step 4: Simplify right side
    45,158.81x = 919,083,746.17
  5. Step 5: Solve for x
    x = 919,083,746.17/45,158.81
  6. Step 6: Final answer
    x = 20,352.26

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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.