Home / 86,056.04-129,099.10-39,313.64

Finding the Fourth Proportional to 86,056.04, 129,099.10 and 39,313.64

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Solution

The fourth proportional to 86,056.04, 129,099.10 and 39,313.64 is: 58,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,056.04 : 129,099.10 = 39,313.64 : x
  2. Step 2: Convert to fraction form
    86,056.04/129,099.10 = 39,313.64/x
  3. Step 3: Cross multiply
    86,056.04x = 129,099.10 × 39,313.64
  4. Step 4: Simplify right side
    86,056.04x = 5,075,355,541.72
  5. Step 5: Solve for x
    x = 5,075,355,541.72/86,056.04
  6. Step 6: Final answer
    x = 58,977.33

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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.