Home / 86,953.21-130,192.68-65,829.35

Finding the Fourth Proportional to 86,953.21, 130,192.68 and 65,829.35

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Solution

The fourth proportional to 86,953.21, 130,192.68 and 65,829.35 is: 98,564.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,953.21 : 130,192.68 = 65,829.35 : x
  2. Step 2: Convert to fraction form
    86,953.21/130,192.68 = 65,829.35/x
  3. Step 3: Cross multiply
    86,953.21x = 130,192.68 × 65,829.35
  4. Step 4: Simplify right side
    86,953.21x = 8,570,499,499.16
  5. Step 5: Solve for x
    x = 8,570,499,499.16/86,953.21
  6. Step 6: Final answer
    x = 98,564.50

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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.