Home / 78,750.19-118,160.16-41,301.31

Finding the Fourth Proportional to 78,750.19, 118,160.16 and 41,301.31

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Solution

The fourth proportional to 78,750.19, 118,160.16 and 41,301.31 is: 61,970.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,750.19 : 118,160.16 = 41,301.31 : x
  2. Step 2: Convert to fraction form
    78,750.19/118,160.16 = 41,301.31/x
  3. Step 3: Cross multiply
    78,750.19x = 118,160.16 × 41,301.31
  4. Step 4: Simplify right side
    78,750.19x = 4,880,169,397.81
  5. Step 5: Solve for x
    x = 4,880,169,397.81/78,750.19
  6. Step 6: Final answer
    x = 61,970.26

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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.