Home / 78,459.75-117,681.11-46,442.07

Finding the Fourth Proportional to 78,459.75, 117,681.11 and 46,442.07

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Solution

The fourth proportional to 78,459.75, 117,681.11 and 46,442.07 is: 69,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,459.75 : 117,681.11 = 46,442.07 : x
  2. Step 2: Convert to fraction form
    78,459.75/117,681.11 = 46,442.07/x
  3. Step 3: Cross multiply
    78,459.75x = 117,681.11 × 46,442.07
  4. Step 4: Simplify right side
    78,459.75x = 5,465,354,023.10
  5. Step 5: Solve for x
    x = 5,465,354,023.10/78,459.75
  6. Step 6: Final answer
    x = 69,658.06

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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.