Home / 209,561.02-314,341.80-51,787.06

Finding the Fourth Proportional to 209,561.02, 314,341.80 and 51,787.06

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Solution

The fourth proportional to 209,561.02, 314,341.80 and 51,787.06 is: 77,680.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,561.02 : 314,341.80 = 51,787.06 : x
  2. Step 2: Convert to fraction form
    209,561.02/314,341.80 = 51,787.06/x
  3. Step 3: Cross multiply
    209,561.02x = 314,341.80 × 51,787.06
  4. Step 4: Simplify right side
    209,561.02x = 16,278,837,657.11
  5. Step 5: Solve for x
    x = 16,278,837,657.11/209,561.02
  6. Step 6: Final answer
    x = 77,680.66

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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.