Home / 97,853.43-135,037.73-55,420.16

Finding the Fourth Proportional to 97,853.43, 135,037.73 and 55,420.16

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Solution

The fourth proportional to 97,853.43, 135,037.73 and 55,420.16 is: 76,479.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,853.43 : 135,037.73 = 55,420.16 : x
  2. Step 2: Convert to fraction form
    97,853.43/135,037.73 = 55,420.16/x
  3. Step 3: Cross multiply
    97,853.43x = 135,037.73 × 55,420.16
  4. Step 4: Simplify right side
    97,853.43x = 7,483,812,602.64
  5. Step 5: Solve for x
    x = 7,483,812,602.64/97,853.43
  6. Step 6: Final answer
    x = 76,479.82

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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.