Home / 86,225.46-118,988.76-47,983.06

Finding the Fourth Proportional to 86,225.46, 118,988.76 and 47,983.06

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Solution

The fourth proportional to 86,225.46, 118,988.76 and 47,983.06 is: 66,215.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,225.46 : 118,988.76 = 47,983.06 : x
  2. Step 2: Convert to fraction form
    86,225.46/118,988.76 = 47,983.06/x
  3. Step 3: Cross multiply
    86,225.46x = 118,988.76 × 47,983.06
  4. Step 4: Simplify right side
    86,225.46x = 5,709,444,810.41
  5. Step 5: Solve for x
    x = 5,709,444,810.41/86,225.46
  6. Step 6: Final answer
    x = 66,215.30

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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.