Home / 86,602.07-129,802.25-36,665.57

Finding the Fourth Proportional to 86,602.07, 129,802.25 and 36,665.57

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Solution

The fourth proportional to 86,602.07, 129,802.25 and 36,665.57 is: 54,955.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,602.07 : 129,802.25 = 36,665.57 : x
  2. Step 2: Convert to fraction form
    86,602.07/129,802.25 = 36,665.57/x
  3. Step 3: Cross multiply
    86,602.07x = 129,802.25 × 36,665.57
  4. Step 4: Simplify right side
    86,602.07x = 4,759,272,651.19
  5. Step 5: Solve for x
    x = 4,759,272,651.19/86,602.07
  6. Step 6: Final answer
    x = 54,955.65

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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.