Home / 93,780.14-129,416.81-51,341.40

Finding the Fourth Proportional to 93,780.14, 129,416.81 and 51,341.40

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Solution

The fourth proportional to 93,780.14, 129,416.81 and 51,341.40 is: 70,851.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,780.14 : 129,416.81 = 51,341.40 : x
  2. Step 2: Convert to fraction form
    93,780.14/129,416.81 = 51,341.40/x
  3. Step 3: Cross multiply
    93,780.14x = 129,416.81 × 51,341.40
  4. Step 4: Simplify right side
    93,780.14x = 6,644,440,208.93
  5. Step 5: Solve for x
    x = 6,644,440,208.93/93,780.14
  6. Step 6: Final answer
    x = 70,851.25

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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.