Home / 74,091.51-102,178.67-63,376.83

Finding the Fourth Proportional to 74,091.51, 102,178.67 and 63,376.83

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Solution

The fourth proportional to 74,091.51, 102,178.67 and 63,376.83 is: 87,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,091.51 : 102,178.67 = 63,376.83 : x
  2. Step 2: Convert to fraction form
    74,091.51/102,178.67 = 63,376.83/x
  3. Step 3: Cross multiply
    74,091.51x = 102,178.67 × 63,376.83
  4. Step 4: Simplify right side
    74,091.51x = 6,475,759,881.33
  5. Step 5: Solve for x
    x = 6,475,759,881.33/74,091.51
  6. Step 6: Final answer
    x = 87,402.19

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1.5x scale

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.