Home / 55,822.50-77,036.40-30,672

Finding the Fourth Proportional to 55,822.50, 77,036.40 and 30,672

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Solution

The fourth proportional to 55,822.50, 77,036.40 and 30,672 is: 42,328.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,822.50 : 77,036.40 = 30,672 : x
  2. Step 2: Convert to fraction form
    55,822.50/77,036.40 = 30,672/x
  3. Step 3: Cross multiply
    55,822.50x = 77,036.40 × 30,672
  4. Step 4: Simplify right side
    55,822.50x = 2,362,860,460.80
  5. Step 5: Solve for x
    x = 2,362,860,460.80/55,822.50
  6. Step 6: Final answer
    x = 42,328.10

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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.