Home / 121,595.16-182,390.58-38,487

Finding the Fourth Proportional to 121,595.16, 182,390.58 and 38,487

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Solution

The fourth proportional to 121,595.16, 182,390.58 and 38,487 is: 57,729.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,595.16 : 182,390.58 = 38,487 : x
  2. Step 2: Convert to fraction form
    121,595.16/182,390.58 = 38,487/x
  3. Step 3: Cross multiply
    121,595.16x = 182,390.58 × 38,487
  4. Step 4: Simplify right side
    121,595.16x = 7,019,666,252.46
  5. Step 5: Solve for x
    x = 7,019,666,252.46/121,595.16
  6. Step 6: Final answer
    x = 57,729.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.