Home / 78,600.16-108,451.40-46,762.84

Finding the Fourth Proportional to 78,600.16, 108,451.40 and 46,762.84

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Solution

The fourth proportional to 78,600.16, 108,451.40 and 46,762.84 is: 64,522.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,600.16 : 108,451.40 = 46,762.84 : x
  2. Step 2: Convert to fraction form
    78,600.16/108,451.40 = 46,762.84/x
  3. Step 3: Cross multiply
    78,600.16x = 108,451.40 × 46,762.84
  4. Step 4: Simplify right side
    78,600.16x = 5,071,495,465.98
  5. Step 5: Solve for x
    x = 5,071,495,465.98/78,600.16
  6. Step 6: Final answer
    x = 64,522.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.