Home / 61,870.46-85,337.12-56,782.37

Finding the Fourth Proportional to 61,870.46, 85,337.12 and 56,782.37

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Solution

The fourth proportional to 61,870.46, 85,337.12 and 56,782.37 is: 78,319.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,870.46 : 85,337.12 = 56,782.37 : x
  2. Step 2: Convert to fraction form
    61,870.46/85,337.12 = 56,782.37/x
  3. Step 3: Cross multiply
    61,870.46x = 85,337.12 × 56,782.37
  4. Step 4: Simplify right side
    61,870.46x = 4,845,643,908.16
  5. Step 5: Solve for x
    x = 4,845,643,908.16/61,870.46
  6. Step 6: Final answer
    x = 78,319.19

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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.