Home / 56,280.85-77,667.73-31,130.35

Finding the Fourth Proportional to 56,280.85, 77,667.73 and 31,130.35

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Solution

The fourth proportional to 56,280.85, 77,667.73 and 31,130.35 is: 42,959.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,280.85 : 77,667.73 = 31,130.35 : x
  2. Step 2: Convert to fraction form
    56,280.85/77,667.73 = 31,130.35/x
  3. Step 3: Cross multiply
    56,280.85x = 77,667.73 × 31,130.35
  4. Step 4: Simplify right side
    56,280.85x = 2,417,823,346.61
  5. Step 5: Solve for x
    x = 2,417,823,346.61/56,280.85
  6. Step 6: Final answer
    x = 42,959.97

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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.