Home / 93,401.18-128,854.62-61,143.68

Finding the Fourth Proportional to 93,401.18, 128,854.62 and 61,143.68

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Solution

The fourth proportional to 93,401.18, 128,854.62 and 61,143.68 is: 84,352.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,401.18 : 128,854.62 = 61,143.68 : x
  2. Step 2: Convert to fraction form
    93,401.18/128,854.62 = 61,143.68/x
  3. Step 3: Cross multiply
    93,401.18x = 128,854.62 × 61,143.68
  4. Step 4: Simplify right side
    93,401.18x = 7,878,645,973.94
  5. Step 5: Solve for x
    x = 7,878,645,973.94/93,401.18
  6. Step 6: Final answer
    x = 84,352.75

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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.