Home / 74,514.18-102,820.95-42,681.18

Finding the Fourth Proportional to 74,514.18, 102,820.95 and 42,681.18

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Solution

The fourth proportional to 74,514.18, 102,820.95 and 42,681.18 is: 58,895.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,514.18 : 102,820.95 = 42,681.18 : x
  2. Step 2: Convert to fraction form
    74,514.18/102,820.95 = 42,681.18/x
  3. Step 3: Cross multiply
    74,514.18x = 102,820.95 × 42,681.18
  4. Step 4: Simplify right side
    74,514.18x = 4,388,519,474.72
  5. Step 5: Solve for x
    x = 4,388,519,474.72/74,514.18
  6. Step 6: Final answer
    x = 58,895.09

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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.