Home / 56,349.94-77,680.08-42,897.76

Finding the Fourth Proportional to 56,349.94, 77,680.08 and 42,897.76

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Solution

The fourth proportional to 56,349.94, 77,680.08 and 42,897.76 is: 59,135.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,349.94 : 77,680.08 = 42,897.76 : x
  2. Step 2: Convert to fraction form
    56,349.94/77,680.08 = 42,897.76/x
  3. Step 3: Cross multiply
    56,349.94x = 77,680.08 × 42,897.76
  4. Step 4: Simplify right side
    56,349.94x = 3,332,301,428.62
  5. Step 5: Solve for x
    x = 3,332,301,428.62/56,349.94
  6. Step 6: Final answer
    x = 59,135.85

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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.