Home / 89,681.09-134,527.77-30,509.06

Finding the Fourth Proportional to 89,681.09, 134,527.77 and 30,509.06

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Solution

The fourth proportional to 89,681.09, 134,527.77 and 30,509.06 is: 45,765.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,681.09 : 134,527.77 = 30,509.06 : x
  2. Step 2: Convert to fraction form
    89,681.09/134,527.77 = 30,509.06/x
  3. Step 3: Cross multiply
    89,681.09x = 134,527.77 × 30,509.06
  4. Step 4: Simplify right side
    89,681.09x = 4,104,315,133.96
  5. Step 5: Solve for x
    x = 4,104,315,133.96/89,681.09
  6. Step 6: Final answer
    x = 45,765.67

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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.