Home / 86,864.20-130,042.75-53,484.10

Finding the Fourth Proportional to 86,864.20, 130,042.75 and 53,484.10

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Solution

The fourth proportional to 86,864.20, 130,042.75 and 53,484.10 is: 80,070.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,864.20 : 130,042.75 = 53,484.10 : x
  2. Step 2: Convert to fraction form
    86,864.20/130,042.75 = 53,484.10/x
  3. Step 3: Cross multiply
    86,864.20x = 130,042.75 × 53,484.10
  4. Step 4: Simplify right side
    86,864.20x = 6,955,219,445.28
  5. Step 5: Solve for x
    x = 6,955,219,445.28/86,864.20
  6. Step 6: Final answer
    x = 80,070.03

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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.