Home / 85,509.26-128,291.56-41,130.24

Finding the Fourth Proportional to 85,509.26, 128,291.56 and 41,130.24

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Solution

The fourth proportional to 85,509.26, 128,291.56 and 41,130.24 is: 61,708.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,509.26 : 128,291.56 = 41,130.24 : x
  2. Step 2: Convert to fraction form
    85,509.26/128,291.56 = 41,130.24/x
  3. Step 3: Cross multiply
    85,509.26x = 128,291.56 × 41,130.24
  4. Step 4: Simplify right side
    85,509.26x = 5,276,662,652.77
  5. Step 5: Solve for x
    x = 5,276,662,652.77/85,509.26
  6. Step 6: Final answer
    x = 61,708.67

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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.