Home / 91,389.28-126,118.08-53,664.16

Finding the Fourth Proportional to 91,389.28, 126,118.08 and 53,664.16

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Solution

The fourth proportional to 91,389.28, 126,118.08 and 53,664.16 is: 74,057.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,389.28 : 126,118.08 = 53,664.16 : x
  2. Step 2: Convert to fraction form
    91,389.28/126,118.08 = 53,664.16/x
  3. Step 3: Cross multiply
    91,389.28x = 126,118.08 × 53,664.16
  4. Step 4: Simplify right side
    91,389.28x = 6,768,020,824.01
  5. Step 5: Solve for x
    x = 6,768,020,824.01/91,389.28
  6. Step 6: Final answer
    x = 74,057.05

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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.