Home / 93,031.02-128,378.88-52,747.48

Finding the Fourth Proportional to 93,031.02, 128,378.88 and 52,747.48

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Solution

The fourth proportional to 93,031.02, 128,378.88 and 52,747.48 is: 72,789.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,031.02 : 128,378.88 = 52,747.48 : x
  2. Step 2: Convert to fraction form
    93,031.02/128,378.88 = 52,747.48/x
  3. Step 3: Cross multiply
    93,031.02x = 128,378.88 × 52,747.48
  4. Step 4: Simplify right side
    93,031.02x = 6,771,662,405.22
  5. Step 5: Solve for x
    x = 6,771,662,405.22/93,031.02
  6. Step 6: Final answer
    x = 72,789.30

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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.