Home / 89,999.40-135,028.28-30,835.60

Finding the Fourth Proportional to 89,999.40, 135,028.28 and 30,835.60

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Solution

The fourth proportional to 89,999.40, 135,028.28 and 30,835.60 is: 46,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,999.40 : 135,028.28 = 30,835.60 : x
  2. Step 2: Convert to fraction form
    89,999.40/135,028.28 = 30,835.60/x
  3. Step 3: Cross multiply
    89,999.40x = 135,028.28 × 30,835.60
  4. Step 4: Simplify right side
    89,999.40x = 4,163,678,030.77
  5. Step 5: Solve for x
    x = 4,163,678,030.77/89,999.40
  6. Step 6: Final answer
    x = 46,263.40

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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.