Home / 86,497.40-119,279.05-57,817.13

Finding the Fourth Proportional to 86,497.40, 119,279.05 and 57,817.13

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Solution

The fourth proportional to 86,497.40, 119,279.05 and 57,817.13 is: 79,729.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,497.40 : 119,279.05 = 57,817.13 : x
  2. Step 2: Convert to fraction form
    86,497.40/119,279.05 = 57,817.13/x
  3. Step 3: Cross multiply
    86,497.40x = 119,279.05 × 57,817.13
  4. Step 4: Simplify right side
    86,497.40x = 6,896,371,599.19
  5. Step 5: Solve for x
    x = 6,896,371,599.19/86,497.40
  6. Step 6: Final answer
    x = 79,729.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.