Home / 93,447.20-128,968-52,058.40

Finding the Fourth Proportional to 93,447.20, 128,968 and 52,058.40

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Solution

The fourth proportional to 93,447.20, 128,968 and 52,058.40 is: 71,846.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,447.20 : 128,968 = 52,058.40 : x
  2. Step 2: Convert to fraction form
    93,447.20/128,968 = 52,058.40/x
  3. Step 3: Cross multiply
    93,447.20x = 128,968 × 52,058.40
  4. Step 4: Simplify right side
    93,447.20x = 6,713,867,731.20
  5. Step 5: Solve for x
    x = 6,713,867,731.20/93,447.20
  6. Step 6: Final answer
    x = 71,846.64

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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.