Home / 86,215.93-129,312.94-64,061.62

Finding the Fourth Proportional to 86,215.93, 129,312.94 and 64,061.62

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Solution

The fourth proportional to 86,215.93, 129,312.94 and 64,061.62 is: 96,084.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,215.93 : 129,312.94 = 64,061.62 : x
  2. Step 2: Convert to fraction form
    86,215.93/129,312.94 = 64,061.62/x
  3. Step 3: Cross multiply
    86,215.93x = 129,312.94 × 64,061.62
  4. Step 4: Simplify right side
    86,215.93x = 8,283,996,423.36
  5. Step 5: Solve for x
    x = 8,283,996,423.36/86,215.93
  6. Step 6: Final answer
    x = 96,084.29

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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.