Home / 86,011.02-129,031.66-39,268.62

Finding the Fourth Proportional to 86,011.02, 129,031.66 and 39,268.62

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Solution

The fourth proportional to 86,011.02, 129,031.66 and 39,268.62 is: 58,909.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,011.02 : 129,031.66 = 39,268.62 : x
  2. Step 2: Convert to fraction form
    86,011.02/129,031.66 = 39,268.62/x
  3. Step 3: Cross multiply
    86,011.02x = 129,031.66 × 39,268.62
  4. Step 4: Simplify right side
    86,011.02x = 5,066,895,224.51
  5. Step 5: Solve for x
    x = 5,066,895,224.51/86,011.02
  6. Step 6: Final answer
    x = 58,909.84

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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.