Home / 56,853.12-78,457.72-31,360.40

Finding the Fourth Proportional to 56,853.12, 78,457.72 and 31,360.40

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Solution

The fourth proportional to 56,853.12, 78,457.72 and 31,360.40 is: 43,277.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853.12 : 78,457.72 = 31,360.40 : x
  2. Step 2: Convert to fraction form
    56,853.12/78,457.72 = 31,360.40/x
  3. Step 3: Cross multiply
    56,853.12x = 78,457.72 × 31,360.40
  4. Step 4: Simplify right side
    56,853.12x = 2,460,465,482.29
  5. Step 5: Solve for x
    x = 2,460,465,482.29/56,853.12
  6. Step 6: Final answer
    x = 43,277.58

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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.