Home / 86,875.72-119,878.38-48,637.36

Finding the Fourth Proportional to 86,875.72, 119,878.38 and 48,637.36

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Solution

The fourth proportional to 86,875.72, 119,878.38 and 48,637.36 is: 67,113.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,875.72 : 119,878.38 = 48,637.36 : x
  2. Step 2: Convert to fraction form
    86,875.72/119,878.38 = 48,637.36/x
  3. Step 3: Cross multiply
    86,875.72x = 119,878.38 × 48,637.36
  4. Step 4: Simplify right side
    86,875.72x = 5,830,567,924.28
  5. Step 5: Solve for x
    x = 5,830,567,924.28/86,875.72
  6. Step 6: Final answer
    x = 67,113.89

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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.