Home / 77,405.33-116,140.87-42,303.98

Finding the Fourth Proportional to 77,405.33, 116,140.87 and 42,303.98

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Solution

The fourth proportional to 77,405.33, 116,140.87 and 42,303.98 is: 63,473.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,405.33 : 116,140.87 = 42,303.98 : x
  2. Step 2: Convert to fraction form
    77,405.33/116,140.87 = 42,303.98/x
  3. Step 3: Cross multiply
    77,405.33x = 116,140.87 × 42,303.98
  4. Step 4: Simplify right side
    77,405.33x = 4,913,221,041.66
  5. Step 5: Solve for x
    x = 4,913,221,041.66/77,405.33
  6. Step 6: Final answer
    x = 63,473.94

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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.