Home / 86,742.16-119,802.72-58,398.64

Finding the Fourth Proportional to 86,742.16, 119,802.72 and 58,398.64

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Solution

The fourth proportional to 86,742.16, 119,802.72 and 58,398.64 is: 80,656.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,742.16 : 119,802.72 = 58,398.64 : x
  2. Step 2: Convert to fraction form
    86,742.16/119,802.72 = 58,398.64/x
  3. Step 3: Cross multiply
    86,742.16x = 119,802.72 × 58,398.64
  4. Step 4: Simplify right side
    86,742.16x = 6,996,315,916.30
  5. Step 5: Solve for x
    x = 6,996,315,916.30/86,742.16
  6. Step 6: Final answer
    x = 80,656.46

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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.