Home / 74,855.40-112,185.60-30,430.32

Finding the Fourth Proportional to 74,855.40, 112,185.60 and 30,430.32

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Solution

The fourth proportional to 74,855.40, 112,185.60 and 30,430.32 is: 45,605.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,855.40 : 112,185.60 = 30,430.32 : x
  2. Step 2: Convert to fraction form
    74,855.40/112,185.60 = 30,430.32/x
  3. Step 3: Cross multiply
    74,855.40x = 112,185.60 × 30,430.32
  4. Step 4: Simplify right side
    74,855.40x = 3,413,843,707.39
  5. Step 5: Solve for x
    x = 3,413,843,707.39/74,855.40
  6. Step 6: Final answer
    x = 45,605.84

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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.