Home / 55,849.08-77,071.98-30,700.20

Finding the Fourth Proportional to 55,849.08, 77,071.98 and 30,700.20

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Solution

The fourth proportional to 55,849.08, 77,071.98 and 30,700.20 is: 42,366.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,849.08 : 77,071.98 = 30,700.20 : x
  2. Step 2: Convert to fraction form
    55,849.08/77,071.98 = 30,700.20/x
  3. Step 3: Cross multiply
    55,849.08x = 77,071.98 × 30,700.20
  4. Step 4: Simplify right side
    55,849.08x = 2,366,125,200.40
  5. Step 5: Solve for x
    x = 2,366,125,200.40/55,849.08
  6. Step 6: Final answer
    x = 42,366.41

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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.