Home / 78,314.04-117,323.10-60,697.62

Finding the Fourth Proportional to 78,314.04, 117,323.10 and 60,697.62

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Solution

The fourth proportional to 78,314.04, 117,323.10 and 60,697.62 is: 90,931.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314.04 : 117,323.10 = 60,697.62 : x
  2. Step 2: Convert to fraction form
    78,314.04/117,323.10 = 60,697.62/x
  3. Step 3: Cross multiply
    78,314.04x = 117,323.10 × 60,697.62
  4. Step 4: Simplify right side
    78,314.04x = 7,121,232,941.02
  5. Step 5: Solve for x
    x = 7,121,232,941.02/78,314.04
  6. Step 6: Final answer
    x = 90,931.75

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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.