Home / 55,830.80-77,045.63-30,679.76

Finding the Fourth Proportional to 55,830.80, 77,045.63 and 30,679.76

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Solution

The fourth proportional to 55,830.80, 77,045.63 and 30,679.76 is: 42,337.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,830.80 : 77,045.63 = 30,679.76 : x
  2. Step 2: Convert to fraction form
    55,830.80/77,045.63 = 30,679.76/x
  3. Step 3: Cross multiply
    55,830.80x = 77,045.63 × 30,679.76
  4. Step 4: Simplify right side
    55,830.80x = 2,363,741,437.45
  5. Step 5: Solve for x
    x = 2,363,741,437.45/55,830.80
  6. Step 6: Final answer
    x = 42,337.59

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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.