Home / 77,285.32-106,669.28-52,821.45

Finding the Fourth Proportional to 77,285.32, 106,669.28 and 52,821.45

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Solution

The fourth proportional to 77,285.32, 106,669.28 and 52,821.45 is: 72,904.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,285.32 : 106,669.28 = 52,821.45 : x
  2. Step 2: Convert to fraction form
    77,285.32/106,669.28 = 52,821.45/x
  3. Step 3: Cross multiply
    77,285.32x = 106,669.28 × 52,821.45
  4. Step 4: Simplify right side
    77,285.32x = 5,634,426,172.11
  5. Step 5: Solve for x
    x = 5,634,426,172.11/77,285.32
  6. Step 6: Final answer
    x = 72,904.22

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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.