Home / 78,677.29-118,118.81-46,714.70

Finding the Fourth Proportional to 78,677.29, 118,118.81 and 46,714.70

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Solution

The fourth proportional to 78,677.29, 118,118.81 and 46,714.70 is: 70,133.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,677.29 : 118,118.81 = 46,714.70 : x
  2. Step 2: Convert to fraction form
    78,677.29/118,118.81 = 46,714.70/x
  3. Step 3: Cross multiply
    78,677.29x = 118,118.81 × 46,714.70
  4. Step 4: Simplify right side
    78,677.29x = 5,517,884,773.51
  5. Step 5: Solve for x
    x = 5,517,884,773.51/78,677.29
  6. Step 6: Final answer
    x = 70,133.13

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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.