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Finding the Fourth Proportional to 50,903.07, 70,243.07 and 30,748.05

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Solution

The fourth proportional to 50,903.07, 70,243.07 and 30,748.05 is: 42,430.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,903.07 : 70,243.07 = 30,748.05 : x
  2. Step 2: Convert to fraction form
    50,903.07/70,243.07 = 30,748.05/x
  3. Step 3: Cross multiply
    50,903.07x = 70,243.07 × 30,748.05
  4. Step 4: Simplify right side
    50,903.07x = 2,159,837,428.51
  5. Step 5: Solve for x
    x = 2,159,837,428.51/50,903.07
  6. Step 6: Final answer
    x = 42,430.40

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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.