Home / 56,307.34-77,703.06-31,156.84

Finding the Fourth Proportional to 56,307.34, 77,703.06 and 31,156.84

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Solution

The fourth proportional to 56,307.34, 77,703.06 and 31,156.84 is: 42,995.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,307.34 : 77,703.06 = 31,156.84 : x
  2. Step 2: Convert to fraction form
    56,307.34/77,703.06 = 31,156.84/x
  3. Step 3: Cross multiply
    56,307.34x = 77,703.06 × 31,156.84
  4. Step 4: Simplify right side
    56,307.34x = 2,420,981,807.93
  5. Step 5: Solve for x
    x = 2,420,981,807.93/56,307.34
  6. Step 6: Final answer
    x = 42,995.85

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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.