Home / 93,143.61-128,538.36-50,702.04

Finding the Fourth Proportional to 93,143.61, 128,538.36 and 50,702.04

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Solution

The fourth proportional to 93,143.61, 128,538.36 and 50,702.04 is: 69,968.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,143.61 : 128,538.36 = 50,702.04 : x
  2. Step 2: Convert to fraction form
    93,143.61/128,538.36 = 50,702.04/x
  3. Step 3: Cross multiply
    93,143.61x = 128,538.36 × 50,702.04
  4. Step 4: Simplify right side
    93,143.61x = 6,517,157,070.25
  5. Step 5: Solve for x
    x = 6,517,157,070.25/93,143.61
  6. Step 6: Final answer
    x = 69,968.91

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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.