Home / 145,611.76-218,417.55-40,430.70

Finding the Fourth Proportional to 145,611.76, 218,417.55 and 40,430.70

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Solution

The fourth proportional to 145,611.76, 218,417.55 and 40,430.70 is: 60,646.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,611.76 : 218,417.55 = 40,430.70 : x
  2. Step 2: Convert to fraction form
    145,611.76/218,417.55 = 40,430.70/x
  3. Step 3: Cross multiply
    145,611.76x = 218,417.55 × 40,430.70
  4. Step 4: Simplify right side
    145,611.76x = 8,830,774,438.79
  5. Step 5: Solve for x
    x = 8,830,774,438.79/145,611.76
  6. Step 6: Final answer
    x = 60,646.03

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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.