Home / 78,416.04-117,618.01-25,113.60

Finding the Fourth Proportional to 78,416.04, 117,618.01 and 25,113.60

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Solution

The fourth proportional to 78,416.04, 117,618.01 and 25,113.60 is: 37,668.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,416.04 : 117,618.01 = 25,113.60 : x
  2. Step 2: Convert to fraction form
    78,416.04/117,618.01 = 25,113.60/x
  3. Step 3: Cross multiply
    78,416.04x = 117,618.01 × 25,113.60
  4. Step 4: Simplify right side
    78,416.04x = 2,953,811,533.70
  5. Step 5: Solve for x
    x = 2,953,811,533.70/78,416.04
  6. Step 6: Final answer
    x = 37,668.46

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1.5x scale

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.