Home / 93,130.83-128,521.08-50,689.26

Finding the Fourth Proportional to 93,130.83, 128,521.08 and 50,689.26

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Solution

The fourth proportional to 93,130.83, 128,521.08 and 50,689.26 is: 69,951.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,130.83 : 128,521.08 = 50,689.26 : x
  2. Step 2: Convert to fraction form
    93,130.83/128,521.08 = 50,689.26/x
  3. Step 3: Cross multiply
    93,130.83x = 128,521.08 × 50,689.26
  4. Step 4: Simplify right side
    93,130.83x = 6,514,638,439.60
  5. Step 5: Solve for x
    x = 6,514,638,439.60/93,130.83
  6. Step 6: Final answer
    x = 69,951.47

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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.