Home / 56,477.76-77,941.54-30,985.08

Finding the Fourth Proportional to 56,477.76, 77,941.54 and 30,985.08

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Solution

The fourth proportional to 56,477.76, 77,941.54 and 30,985.08 is: 42,760.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,477.76 : 77,941.54 = 30,985.08 : x
  2. Step 2: Convert to fraction form
    56,477.76/77,941.54 = 30,985.08/x
  3. Step 3: Cross multiply
    56,477.76x = 77,941.54 × 30,985.08
  4. Step 4: Simplify right side
    56,477.76x = 2,415,024,852.22
  5. Step 5: Solve for x
    x = 2,415,024,852.22/56,477.76
  6. Step 6: Final answer
    x = 42,760.63

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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.