Home / 77,988.74-116,970.26-28,059.53

Finding the Fourth Proportional to 77,988.74, 116,970.26 and 28,059.53

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Solution

The fourth proportional to 77,988.74, 116,970.26 and 28,059.53 is: 42,084.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,988.74 : 116,970.26 = 28,059.53 : x
  2. Step 2: Convert to fraction form
    77,988.74/116,970.26 = 28,059.53/x
  3. Step 3: Cross multiply
    77,988.74x = 116,970.26 × 28,059.53
  4. Step 4: Simplify right side
    77,988.74x = 3,282,130,671.71
  5. Step 5: Solve for x
    x = 3,282,130,671.71/77,988.74
  6. Step 6: Final answer
    x = 42,084.67

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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.