Home / 93,828.78-129,478.91-51,386.40

Finding the Fourth Proportional to 93,828.78, 129,478.91 and 51,386.40

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Solution

The fourth proportional to 93,828.78, 129,478.91 and 51,386.40 is: 70,910.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,828.78 : 129,478.91 = 51,386.40 : x
  2. Step 2: Convert to fraction form
    93,828.78/129,478.91 = 51,386.40/x
  3. Step 3: Cross multiply
    93,828.78x = 129,478.91 × 51,386.40
  4. Step 4: Simplify right side
    93,828.78x = 6,653,454,803.89
  5. Step 5: Solve for x
    x = 6,653,454,803.89/93,828.78
  6. Step 6: Final answer
    x = 70,910.60

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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.