Home / 56,276.98-77,664.02-30,784.76

Finding the Fourth Proportional to 56,276.98, 77,664.02 and 30,784.76

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Solution

The fourth proportional to 56,276.98, 77,664.02 and 30,784.76 is: 42,483.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,276.98 : 77,664.02 = 30,784.76 : x
  2. Step 2: Convert to fraction form
    56,276.98/77,664.02 = 30,784.76/x
  3. Step 3: Cross multiply
    56,276.98x = 77,664.02 × 30,784.76
  4. Step 4: Simplify right side
    56,276.98x = 2,390,867,965.33
  5. Step 5: Solve for x
    x = 2,390,867,965.33/56,276.98
  6. Step 6: Final answer
    x = 42,483.94

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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.