Home / 74,554.15-102,887.55-42,729.19

Finding the Fourth Proportional to 74,554.15, 102,887.55 and 42,729.19

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Solution

The fourth proportional to 74,554.15, 102,887.55 and 42,729.19 is: 58,967.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,554.15 : 102,887.55 = 42,729.19 : x
  2. Step 2: Convert to fraction form
    74,554.15/102,887.55 = 42,729.19/x
  3. Step 3: Cross multiply
    74,554.15x = 102,887.55 × 42,729.19
  4. Step 4: Simplify right side
    74,554.15x = 4,396,301,158.15
  5. Step 5: Solve for x
    x = 4,396,301,158.15/74,554.15
  6. Step 6: Final answer
    x = 58,967.90

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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.