Home / 93,289.16-128,742.51-53,009.75

Finding the Fourth Proportional to 93,289.16, 128,742.51 and 53,009.75

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Solution

The fourth proportional to 93,289.16, 128,742.51 and 53,009.75 is: 73,155.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,289.16 : 128,742.51 = 53,009.75 : x
  2. Step 2: Convert to fraction form
    93,289.16/128,742.51 = 53,009.75/x
  3. Step 3: Cross multiply
    93,289.16x = 128,742.51 × 53,009.75
  4. Step 4: Simplify right side
    93,289.16x = 6,824,608,269.47
  5. Step 5: Solve for x
    x = 6,824,608,269.47/93,289.16
  6. Step 6: Final answer
    x = 73,155.43

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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.