Home / 78,948.93-118,321.33-59,071.53

Finding the Fourth Proportional to 78,948.93, 118,321.33 and 59,071.53

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Solution

The fourth proportional to 78,948.93, 118,321.33 and 59,071.53 is: 88,530.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,948.93 : 118,321.33 = 59,071.53 : x
  2. Step 2: Convert to fraction form
    78,948.93/118,321.33 = 59,071.53/x
  3. Step 3: Cross multiply
    78,948.93x = 118,321.33 × 59,071.53
  4. Step 4: Simplify right side
    78,948.93x = 6,989,421,994.73
  5. Step 5: Solve for x
    x = 6,989,421,994.73/78,948.93
  6. Step 6: Final answer
    x = 88,530.93

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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.