Home / 86,886.04-130,285.32-42,446.20

Finding the Fourth Proportional to 86,886.04, 130,285.32 and 42,446.20

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Solution

The fourth proportional to 86,886.04, 130,285.32 and 42,446.20 is: 63,647.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,886.04 : 130,285.32 = 42,446.20 : x
  2. Step 2: Convert to fraction form
    86,886.04/130,285.32 = 42,446.20/x
  3. Step 3: Cross multiply
    86,886.04x = 130,285.32 × 42,446.20
  4. Step 4: Simplify right side
    86,886.04x = 5,530,116,749.78
  5. Step 5: Solve for x
    x = 5,530,116,749.78/86,886.04
  6. Step 6: Final answer
    x = 63,647.93

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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.