Home / 77,870.23-116,378.71-56,854.58

Finding the Fourth Proportional to 77,870.23, 116,378.71 and 56,854.58

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Solution

The fourth proportional to 77,870.23, 116,378.71 and 56,854.58 is: 84,970.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,870.23 : 116,378.71 = 56,854.58 : x
  2. Step 2: Convert to fraction form
    77,870.23/116,378.71 = 56,854.58/x
  3. Step 3: Cross multiply
    77,870.23x = 116,378.71 × 56,854.58
  4. Step 4: Simplify right side
    77,870.23x = 6,616,661,953.96
  5. Step 5: Solve for x
    x = 6,616,661,953.96/77,870.23
  6. Step 6: Final answer
    x = 84,970.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.