Home / 56,853.38-78,457.74-31,359.17

Finding the Fourth Proportional to 56,853.38, 78,457.74 and 31,359.17

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Solution

The fourth proportional to 56,853.38, 78,457.74 and 31,359.17 is: 43,275.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853.38 : 78,457.74 = 31,359.17 : x
  2. Step 2: Convert to fraction form
    56,853.38/78,457.74 = 31,359.17/x
  3. Step 3: Cross multiply
    56,853.38x = 78,457.74 × 31,359.17
  4. Step 4: Simplify right side
    56,853.38x = 2,460,369,606.48
  5. Step 5: Solve for x
    x = 2,460,369,606.48/56,853.38
  6. Step 6: Final answer
    x = 43,275.70

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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.