Home / 71,153.52-98,192.17-38,888.79

Finding the Fourth Proportional to 71,153.52, 98,192.17 and 38,888.79

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Solution

The fourth proportional to 71,153.52, 98,192.17 and 38,888.79 is: 53,666.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,153.52 : 98,192.17 = 38,888.79 : x
  2. Step 2: Convert to fraction form
    71,153.52/98,192.17 = 38,888.79/x
  3. Step 3: Cross multiply
    71,153.52x = 98,192.17 × 38,888.79
  4. Step 4: Simplify right side
    71,153.52x = 3,818,574,678.77
  5. Step 5: Solve for x
    x = 3,818,574,678.77/71,153.52
  6. Step 6: Final answer
    x = 53,666.70

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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.