Home / 93,420.62-128,924.07-53,138.06

Finding the Fourth Proportional to 93,420.62, 128,924.07 and 53,138.06

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Solution

The fourth proportional to 93,420.62, 128,924.07 and 53,138.06 is: 73,332.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,420.62 : 128,924.07 = 53,138.06 : x
  2. Step 2: Convert to fraction form
    93,420.62/128,924.07 = 53,138.06/x
  3. Step 3: Cross multiply
    93,420.62x = 128,924.07 × 53,138.06
  4. Step 4: Simplify right side
    93,420.62x = 6,850,774,967.10
  5. Step 5: Solve for x
    x = 6,850,774,967.10/93,420.62
  6. Step 6: Final answer
    x = 73,332.58

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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.