Home / 86,159.96-118,901.40-47,920.04

Finding the Fourth Proportional to 86,159.96, 118,901.40 and 47,920.04

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Solution

The fourth proportional to 86,159.96, 118,901.40 and 47,920.04 is: 66,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,159.96 : 118,901.40 = 47,920.04 : x
  2. Step 2: Convert to fraction form
    86,159.96/118,901.40 = 47,920.04/x
  3. Step 3: Cross multiply
    86,159.96x = 118,901.40 × 47,920.04
  4. Step 4: Simplify right side
    86,159.96x = 5,697,759,844.06
  5. Step 5: Solve for x
    x = 5,697,759,844.06/86,159.96
  6. Step 6: Final answer
    x = 66,130.02

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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.