Home / 86,827.04-130,152-34,215.20

Finding the Fourth Proportional to 86,827.04, 130,152 and 34,215.20

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Solution

The fourth proportional to 86,827.04, 130,152 and 34,215.20 is: 51,287.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,827.04 : 130,152 = 34,215.20 : x
  2. Step 2: Convert to fraction form
    86,827.04/130,152 = 34,215.20/x
  3. Step 3: Cross multiply
    86,827.04x = 130,152 × 34,215.20
  4. Step 4: Simplify right side
    86,827.04x = 4,453,176,710.40
  5. Step 5: Solve for x
    x = 4,453,176,710.40/86,827.04
  6. Step 6: Final answer
    x = 51,287.90

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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.