Home / 77,283.18-106,885.58-69,322.50

Finding the Fourth Proportional to 77,283.18, 106,885.58 and 69,322.50

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Solution

The fourth proportional to 77,283.18, 106,885.58 and 69,322.50 is: 95,875.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,283.18 : 106,885.58 = 69,322.50 : x
  2. Step 2: Convert to fraction form
    77,283.18/106,885.58 = 69,322.50/x
  3. Step 3: Cross multiply
    77,283.18x = 106,885.58 × 69,322.50
  4. Step 4: Simplify right side
    77,283.18x = 7,409,575,619.55
  5. Step 5: Solve for x
    x = 7,409,575,619.55/77,283.18
  6. Step 6: Final answer
    x = 95,875.66

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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.