Home / 86,070.04-129,075.78-32,749.36

Finding the Fourth Proportional to 86,070.04, 129,075.78 and 32,749.36

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Solution

The fourth proportional to 86,070.04, 129,075.78 and 32,749.36 is: 49,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,070.04 : 129,075.78 = 32,749.36 : x
  2. Step 2: Convert to fraction form
    86,070.04/129,075.78 = 32,749.36/x
  3. Step 3: Cross multiply
    86,070.04x = 129,075.78 × 32,749.36
  4. Step 4: Simplify right side
    86,070.04x = 4,227,149,186.50
  5. Step 5: Solve for x
    x = 4,227,149,186.50/86,070.04
  6. Step 6: Final answer
    x = 49,112.90

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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.