Home / 45,038.42-67,521.15-18,762.83

Finding the Fourth Proportional to 45,038.42, 67,521.15 and 18,762.83

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Solution

The fourth proportional to 45,038.42, 67,521.15 and 18,762.83 is: 28,129.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,038.42 : 67,521.15 = 18,762.83 : x
  2. Step 2: Convert to fraction form
    45,038.42/67,521.15 = 18,762.83/x
  3. Step 3: Cross multiply
    45,038.42x = 67,521.15 × 18,762.83
  4. Step 4: Simplify right side
    45,038.42x = 1,266,887,858.85
  5. Step 5: Solve for x
    x = 1,266,887,858.85/45,038.42
  6. Step 6: Final answer
    x = 28,129.05

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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.