Home / 53,210.79-73,428.39-30,534.03

Finding the Fourth Proportional to 53,210.79, 73,428.39 and 30,534.03

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Solution

The fourth proportional to 53,210.79, 73,428.39 and 30,534.03 is: 42,135.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,210.79 : 73,428.39 = 30,534.03 : x
  2. Step 2: Convert to fraction form
    53,210.79/73,428.39 = 30,534.03/x
  3. Step 3: Cross multiply
    53,210.79x = 73,428.39 × 30,534.03
  4. Step 4: Simplify right side
    53,210.79x = 2,242,064,663.11
  5. Step 5: Solve for x
    x = 2,242,064,663.11/53,210.79
  6. Step 6: Final answer
    x = 42,135.53

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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.