Home / 78,355.28-108,115.08-46,534.16

Finding the Fourth Proportional to 78,355.28, 108,115.08 and 46,534.16

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Solution

The fourth proportional to 78,355.28, 108,115.08 and 46,534.16 is: 64,208.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,355.28 : 108,115.08 = 46,534.16 : x
  2. Step 2: Convert to fraction form
    78,355.28/108,115.08 = 46,534.16/x
  3. Step 3: Cross multiply
    78,355.28x = 108,115.08 × 46,534.16
  4. Step 4: Simplify right side
    78,355.28x = 5,031,044,431.13
  5. Step 5: Solve for x
    x = 5,031,044,431.13/78,355.28
  6. Step 6: Final answer
    x = 64,208.11

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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.