Home / 56,280.75-77,667.48-31,130.25

Finding the Fourth Proportional to 56,280.75, 77,667.48 and 31,130.25

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Solution

The fourth proportional to 56,280.75, 77,667.48 and 31,130.25 is: 42,959.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,280.75 : 77,667.48 = 31,130.25 : x
  2. Step 2: Convert to fraction form
    56,280.75/77,667.48 = 31,130.25/x
  3. Step 3: Cross multiply
    56,280.75x = 77,667.48 × 31,130.25
  4. Step 4: Simplify right side
    56,280.75x = 2,417,808,069.27
  5. Step 5: Solve for x
    x = 2,417,808,069.27/56,280.75
  6. Step 6: Final answer
    x = 42,959.77

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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.