Home / 93,423.40-128,928.16-53,144.26

Finding the Fourth Proportional to 93,423.40, 128,928.16 and 53,144.26

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Solution

The fourth proportional to 93,423.40, 128,928.16 and 53,144.26 is: 73,341.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,423.40 : 128,928.16 = 53,144.26 : x
  2. Step 2: Convert to fraction form
    93,423.40/128,928.16 = 53,144.26/x
  3. Step 3: Cross multiply
    93,423.40x = 128,928.16 × 53,144.26
  4. Step 4: Simplify right side
    93,423.40x = 6,851,791,656.36
  5. Step 5: Solve for x
    x = 6,851,791,656.36/93,423.40
  6. Step 6: Final answer
    x = 73,341.28

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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.