Home / 93,720.78-129,332.70-51,278.40

Finding the Fourth Proportional to 93,720.78, 129,332.70 and 51,278.40

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Solution

The fourth proportional to 93,720.78, 129,332.70 and 51,278.40 is: 70,763.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,720.78 : 129,332.70 = 51,278.40 : x
  2. Step 2: Convert to fraction form
    93,720.78/129,332.70 = 51,278.40/x
  3. Step 3: Cross multiply
    93,720.78x = 129,332.70 × 51,278.40
  4. Step 4: Simplify right side
    93,720.78x = 6,631,973,923.68
  5. Step 5: Solve for x
    x = 6,631,973,923.68/93,720.78
  6. Step 6: Final answer
    x = 70,763.11

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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.