Home / 45,320.16-68,032.08-42,728.16

Finding the Fourth Proportional to 45,320.16, 68,032.08 and 42,728.16

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Solution

The fourth proportional to 45,320.16, 68,032.08 and 42,728.16 is: 64,141.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,320.16 : 68,032.08 = 42,728.16 : x
  2. Step 2: Convert to fraction form
    45,320.16/68,032.08 = 42,728.16/x
  3. Step 3: Cross multiply
    45,320.16x = 68,032.08 × 42,728.16
  4. Step 4: Simplify right side
    45,320.16x = 2,906,885,599.37
  5. Step 5: Solve for x
    x = 2,906,885,599.37/45,320.16
  6. Step 6: Final answer
    x = 64,141.12

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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.