Home / 77,764.32-116,646.28-31,050

Finding the Fourth Proportional to 77,764.32, 116,646.28 and 31,050

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Solution

The fourth proportional to 77,764.32, 116,646.28 and 31,050 is: 46,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,764.32 : 116,646.28 = 31,050 : x
  2. Step 2: Convert to fraction form
    77,764.32/116,646.28 = 31,050/x
  3. Step 3: Cross multiply
    77,764.32x = 116,646.28 × 31,050
  4. Step 4: Simplify right side
    77,764.32x = 3,621,866,916.38
  5. Step 5: Solve for x
    x = 3,621,866,916.38/77,764.32
  6. Step 6: Final answer
    x = 46,574.92

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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.