Home / 48,430.16-72,221.45-47,987.28

Finding the Fourth Proportional to 48,430.16, 72,221.45 and 47,987.28

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Solution

The fourth proportional to 48,430.16, 72,221.45 and 47,987.28 is: 71,561.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,430.16 : 72,221.45 = 47,987.28 : x
  2. Step 2: Convert to fraction form
    48,430.16/72,221.45 = 47,987.28/x
  3. Step 3: Cross multiply
    48,430.16x = 72,221.45 × 47,987.28
  4. Step 4: Simplify right side
    48,430.16x = 3,465,710,703.22
  5. Step 5: Solve for x
    x = 3,465,710,703.22/48,430.16
  6. Step 6: Final answer
    x = 71,561.01

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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.