Home / 51,590.40-77,312.70-31,810.20

Finding the Fourth Proportional to 51,590.40, 77,312.70 and 31,810.20

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Solution

The fourth proportional to 51,590.40, 77,312.70 and 31,810.20 is: 47,670.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,590.40 : 77,312.70 = 31,810.20 : x
  2. Step 2: Convert to fraction form
    51,590.40/77,312.70 = 31,810.20/x
  3. Step 3: Cross multiply
    51,590.40x = 77,312.70 × 31,810.20
  4. Step 4: Simplify right side
    51,590.40x = 2,459,332,449.54
  5. Step 5: Solve for x
    x = 2,459,332,449.54/51,590.40
  6. Step 6: Final answer
    x = 47,670.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.