Home / 93,259.08-128,699.28-55,555.20

Finding the Fourth Proportional to 93,259.08, 128,699.28 and 55,555.20

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Solution

The fourth proportional to 93,259.08, 128,699.28 and 55,555.20 is: 76,667.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,259.08 : 128,699.28 = 55,555.20 : x
  2. Step 2: Convert to fraction form
    93,259.08/128,699.28 = 55,555.20/x
  3. Step 3: Cross multiply
    93,259.08x = 128,699.28 × 55,555.20
  4. Step 4: Simplify right side
    93,259.08x = 7,149,914,240.26
  5. Step 5: Solve for x
    x = 7,149,914,240.26/93,259.08
  6. Step 6: Final answer
    x = 76,667.22

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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.