Home / 86,523.15-129,784.73-36,590.30

Finding the Fourth Proportional to 86,523.15, 129,784.73 and 36,590.30

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Solution

The fourth proportional to 86,523.15, 129,784.73 and 36,590.30 is: 54,885.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,523.15 : 129,784.73 = 36,590.30 : x
  2. Step 2: Convert to fraction form
    86,523.15/129,784.73 = 36,590.30/x
  3. Step 3: Cross multiply
    86,523.15x = 129,784.73 × 36,590.30
  4. Step 4: Simplify right side
    86,523.15x = 4,748,862,206.12
  5. Step 5: Solve for x
    x = 4,748,862,206.12/86,523.15
  6. Step 6: Final answer
    x = 54,885.45

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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.