Home / 74,521.08-102,837-40,987.08

Finding the Fourth Proportional to 74,521.08, 102,837 and 40,987.08

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Solution

The fourth proportional to 74,521.08, 102,837 and 40,987.08 is: 56,561.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,521.08 : 102,837 = 40,987.08 : x
  2. Step 2: Convert to fraction form
    74,521.08/102,837 = 40,987.08/x
  3. Step 3: Cross multiply
    74,521.08x = 102,837 × 40,987.08
  4. Step 4: Simplify right side
    74,521.08x = 4,214,988,345.96
  5. Step 5: Solve for x
    x = 4,214,988,345.96/74,521.08
  6. Step 6: Final answer
    x = 56,561.02

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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.