Home / 55,880.40-77,096.08-31,678.77

Finding the Fourth Proportional to 55,880.40, 77,096.08 and 31,678.77

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Solution

The fourth proportional to 55,880.40, 77,096.08 and 31,678.77 is: 43,706.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,880.40 : 77,096.08 = 31,678.77 : x
  2. Step 2: Convert to fraction form
    55,880.40/77,096.08 = 31,678.77/x
  3. Step 3: Cross multiply
    55,880.40x = 77,096.08 × 31,678.77
  4. Step 4: Simplify right side
    55,880.40x = 2,442,308,907.02
  5. Step 5: Solve for x
    x = 2,442,308,907.02/55,880.40
  6. Step 6: Final answer
    x = 43,706.00

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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.